Answers
Answer:
Number 1
Explanation:
Related Questions
Which of the following is an accurate statement about the voter turnout rate in the United States?
a. There is usually no difference in participation rates between presidential and midterm elections.
b. Presidential election years usually have significantly higher turnout than in midterm election years
c. Voters are more likely to vote in congressional races in midterms than when presidents are running.
d. More voters turn out to vote in elections where less money is spent to advertise campaigns.
Answers
Answer:
c
Explanation:
The hyperfocus on crime among athletes is limited to what two sports?
Answers
The correct answer to this open question is the following.
Unfortunately, you did attach further context or references.
However, we can comment on the following.
The hyperfocus on crime among athletes is limited to these two sports: football and basketball.
The reason why is that these two sports produce too many "stars" that have too much notoriety for their conduct and behaviors. Some of the athletes that participate in these professional sports got too much attention from the media and the public and are considered famous. This popularity often produces that they lost the ground and act in incongruent ways, many times making the worts decisions that impact their careers by the mistakes they make.
As the public figures they are, their behavior immediately makes the news, and their poor judgment often brings negative consequences to their careers.
Why are people are more serious in population management in comparison of previous day ?
Answers
Answer:
Because of the rapid growth increase was mainly caused by a decreasing death rate (more rapidly than birth rate), and particularly an increase in average human age.
Explanation:
True or False. Buddhism is the most widely spread religion of East Asia.
Please Help! I am at a C+ 79%! If I pass this It can become a B PLEASE HELP!
(It's Global Studies)
Answers
What are the roles and duties of the secretary of the Senate? Check all that apply.
maintaining all Senate documents
ensuring that procedures and rules are followed
setting meeting times for senatorial secessions
keeping a journal of all events that take place in the Senate
assuming the duties of the Senate president in the event of absence, death, or disability
Answers
Answer:
maintaining all Senate documents
ensuring that procedures and rules are followed
keeping a journal of all events that take place in the Senate
a b d
Explanation:
PLEASE MARK BRAINLIEST!!!!!!!!!!!!!Answer:
maintaining all Senate documents
ensuring that procedures and rules are followed
keeping a journal of all events that take place in the Senate
In semiconductor manufacturing, wet chemical etching is often used to remove silicon from the backs of wafers prior to metallization. The etch rate is an important characteristic of this process and known to follow a normal distribution. Two different etching solutions have been compared using two random samples of 10 wafers for each solution. Assume the variances are equal. The etch rates are as follows (in ml per minute):
Solution 1 Solution 2
9.8 10.4 10.2 10.0
9.4 10.3 10.6 10.2
9.3 10.0 10.7 10.7
9.6 10.3 10.4 10.4
10.2 10.1 10.5 10.3
(a) Calculate the sample mean for solution 1.
(b) Calculate the sample standard deviation for solution 1.
(c) Calculate the sample mean for solution 2.
(d) Calculate the sample standard deviation for solution 2.
(e) Test the hypothesis
H
0
:
m
1
=
m
2
versus
H
1
:
m
1
â
m
2
.
Calculate
t
0
.
(f) Calculate a 95% two-sided confidence interval on the difference in mean etch rate.
Answers
Answer:
[tex](a)[/tex] [tex]\bar x_1 = 9.94[/tex]
[tex](b)[/tex] [tex]x_2 = 10.4[/tex]
[tex](c)[/tex] [tex]\sigma_1 = 0.395[/tex]
[tex](d)[/tex] [tex]\sigma_2 = 0.231[/tex]
(e) There is sufficient evidence to reject the claim that the mean etch rate is the same for both solutions
[tex](f)[/tex] [tex]-0.75644 < \mu_1 - \mu_2 < -0.1556[/tex]
Explanation:
Given
Solutions 1 and 2
Solving (a): Mean of solution 1
For Solution 1, we have the following data:
[tex]9.8\ 10.4\ 9.4\ 10.3\ 9.3\ 10.0\ 9.6\ 10.3\ 10.2\ 10.1[/tex]
The sample mean is calculated as:
[tex]\bar x = \frac{\sum x}{n}[/tex]
Where
[tex]n_1 = 10[/tex]
So, we have:
[tex]\bar x_1 = \frac{9.8+ 10.4+ 9.4+ 10.3+ 9.3+ 10.0+ 9.6+ 10.3+ 10.2+ 10.1}{10}[/tex]
[tex]\bar x_1 = \frac{99.4}{10}[/tex]
[tex]\bar x_1 = 9.94[/tex]
Solving (b): Mean of Solution 2
For Solution 1, we have the following data:
[tex]10.2\ 10.0\ 10.6\ 10.2\ 10.7\ 10.7\ 10.4\ 10.4\ 10.5\ 10.3[/tex]
The sample mean is calculated as:
[tex]\bar x = \frac{\sum x}{n}[/tex]
Where
[tex]n_2 = 10[/tex]
So, we have:
[tex]x_2 = \frac{10.2+ 10.0+ 10.6+ 10.2+ 10.7+ 10.7+ 10.4+ 10.4+ 10.5+ 10.3}{10}[/tex]
[tex]x_2 = \frac{104}{10}[/tex]
[tex]x_2 = 10.4[/tex]
Solving (c): Sample Standard Deviation of solution 1
This is calculated as:
[tex]\sigma_1 = \sqrt{\frac{\sum (x-\bar x_1)^2}{n_1-1}}[/tex]
This gives:
[tex]\sigma_1 = \sqrt{\frac{(9.8 - 9.94)^2+ (10.4- 9.94)^2+ (9.4- 9.94)^2+................+ (10.2- 9.94)^2+ (10.1- 9.94)^2}{10 - 1}}[/tex]
[tex]\sigma_1 = \sqrt{\frac{1.404}{9}}[/tex]
[tex]\sigma_1 = \sqrt{0.156}[/tex]
[tex]\sigma_1 = 0.39496835316[/tex]
[tex]\sigma_1 = 0.395[/tex] --- approximated
Solving (d): Sample Standard Deviation of solution 2
This is calculated as:
[tex]\sigma_2 = \sqrt{\frac{\sum (x-\bar x_2)^2}{n_2-1}}[/tex]
So, we have:
[tex]\sigma_2 = \sqrt{\frac{(10.2 - 10.4)^2+ (10.0 - 10.4)^2+ (10.6 - 10.4)^2+ (10.2 - 10.4)^2+.......................+ (10.3 - 10.4)^2}{10-1}}[/tex]
[tex]\sigma_2 = \sqrt{\frac{0.48}{9}}[/tex]
[tex]\sigma_2 = \sqrt{0.05333333333}[/tex]
[tex]\sigma_2 = 0.23094010766[/tex]
[tex]\sigma_2 = 0.231[/tex]
Solving (e): Test the hypothesis
[tex]H_0: \bar x_1 = \bar x_2[/tex]
[tex]H_1: \bar x_1 \ne \bar x_2[/tex]
Start by calculating pooled standard deviation
[tex]s_p = \sqrt{\frac{(n_1 - 1)*\sigma_1^2 + (n_2 - 1)*\sigma_2^2}{n_1 + n_2 -2}[/tex]
[tex]s_p = \sqrt{\frac{(10 - 1)*0.395^2 + (10 - 1)*0.231^2}{10+ 10-2}[/tex]
[tex]s_p = \sqrt{\frac{1.884474}{18}[/tex]
[tex]s_p = \sqrt{0.104693}[/tex]
[tex]s_p = 0.324[/tex]
Calculate test statistic
[tex]t = \frac{\bar x_1 - \bar x_2}{s_p\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}[/tex]
[tex]t = \frac{9.94 - 10.4}{0.324 * \sqrt{\frac{1}{10} + \frac{1}{10}}}[/tex]
[tex]t = \frac{-0.46}{0.324 * \sqrt{0.2}}[/tex]
[tex]t = \frac{-0.46}{0.324 * 0.4472}[/tex]
[tex]t = \frac{-0.46}{0.1448928}[/tex]
[tex]t = -3.175[/tex]
Calculate the degree of freedom
[tex]df = n_1 + n_2 - 2[/tex]
[tex]df = 10+10 - 2[/tex]
[tex]df = 18[/tex]
The p value is the in the column title of the student t distribution in row 18
[tex]p = 002621[/tex]
The p value is less than the significance level (0.05).
i.e.
[tex]p < 0.05[/tex]
So: Reject the null hypothesis
Solving (f): 95% two-sided confidence interval
[tex]c = 95\%[/tex]
Calculate the degree of freedom
[tex]df = n_1 + n_2 - 2[/tex]
[tex]df = 10+10 - 2[/tex]
[tex]df = 18[/tex]
Calculate [tex]\alpha[/tex]
[tex]\alpha = (1 - c)/2[/tex]
[tex]\alpha = (1 - 95\%)/2[/tex]
[tex]\alpha = (0.05)/2[/tex]
[tex]\alpha = 0.025[/tex]
Using student t distribution
[tex]t_{\alpha/2} = 2.101[/tex]
Calculate margin of error (E)
[tex]E = t_{\alpha/2} * s_p * \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}[/tex]
[tex]E = 2.101 * 0.324 * \sqrt{\frac{1}{10} + \frac{1}{10}}[/tex]
[tex]E = 2.101 * 0.324 * \sqrt{0.2}[/tex]
[tex]E = 0.3044[/tex]
The boundaries of the confidence are:
[tex](\bar x_1 - \bar x_2) -E[/tex] [tex]= (9.94- 10.4) - 0.3044 = -0.7644[/tex]
[tex](\bar x_1 - \bar x_2) + E[/tex] [tex]= (9.94- 10.4) + 0.3044 = -0.1556[/tex]
The confidence interval is:
[tex]-0.75644 < \mu_1 - \mu_2 < -0.1556[/tex]
True or False: Disease in the circulatory system does not affect other organ systems, such as the muscular system. *
True
False
Answers
Answer:
False
Basic fact:
the circulatory system is a system that contains the heart and the blood vessels and moves blood throughout the body
Explanation:
since it is a heart and blood vessel it moves blood around the body
if there is a disease in there it spreads all around the body through the blood
Can somebody help me ?
Answers
Answer:
THE 14 AMENDMENT. TRUST ME THIS IS THE RIGHT ANSWER.
What does the abbreviation SAR stand for?
Answers
Answer:
Specific Absorption Rate
Specific Absorption Rate (SAR) For Cell Phones: What It Means For You.
Explanation:
HELP IF U HELP U GET BRAINLIEST ANSWER THIS IS 30 POINTS
Answers
Answer:
introducing tax cuts to stimulate the economy
answer I think is most correct gets marked brainly ist
Answers
what is the important reason why students should learn and develop 21st century skills?
Answers
Answer:
21st-century skills are more important to students than ever before. They provide a framework for successful learning but also ensure students can thrive in a world where change is consistently occuring and learning never stops.
Discuss the roles of the three spheres of government in a democratic country
Answers
Answer search it now it shows best result
Explanation:
who is the greatest man in the whole wide world
Answers
conflict of motives has nothing to do with frustration true or false
Answers
If you’re conflicted on what to do, then you are likely to be or to become frustrated
Which of the is not a characteristic that helps to classify rocks?
Answers
Answer:
Where is a pic... Rocks are "earthly" or "organic" you could say.
Explanation:
how will one adapt from ones post school social routine to minimize the impact that social pressures may have on your academic or work performance,?
Answers
Answer:
need points sorry
tell other
Explanation:
ahjajajajajajjajajajajs
What is one reason why the Ku Klux Klan targeted the Freedmen’s Bureau?
Klan members did not believe African Americans should be educated.
Klan members thought the Freedman’s Bureau was stealing from farmers.
Klan members were carpetbaggers who wanted to change the South.
Klan members wanted to stop the spread of racial violence across the South.
Answers
Answer:
Klan members did not believe African Americans should be educated.
Explanation:
I took the test
The reason why the Ku Klux Klan targeted the Freedmen’s Bureau is because A. Klan members did not believe African Americans should be educated.
What is the Ku Klux Klan?This is known to be an American white supremacist terrorist and hate group.
Hence, we can see that the KKK targeted the Freedmen's bureau because they did not believe African Americans should be educated and so was planned to be attacked.
Read more about the Ku Klux Klan here:
https://brainly.com/question/637953
#SPJ2
Which of the following statements is true of masturbation? a. It is not useful when illness, absence, divorce, or death deprives a person of a partner. b. It produces the same physical responses as sexual activity with a partner. c. It involves sexual stimulation of a man's genitals by means of oral manipulation. d. It is the main cause of warts, blemishes, and blindness in men.
Answers
Answer: c. It involves sexual stimulation of a man's genitals by means of oral manipulation
Explanation:
Masturbation simply refers to thw stimulation of the genitals in order to derive sexual pleasure by an individual. This may either lead to orgasm or not.
It should be noted that masturbation doesn't cause warts, blemishes, and blindness in men. Also, it doesn't have same physical responses like having sex with one's partner.
The expression of a genotype is called a.....
a
nucleus
b
chromosome
c
phenotype
d
translation
Answers
Answer:
the answer to this question is c
what are the disadvantages of bartering
Answers
Answer:
Explanation:
One disadvantage is Lack of Divisibility.
Who wanted Quebec to separate from canada? Please explain in full sentences
Answers
Answer:
Answer:
At a federalist rally of about 12,500 people which was held at the Verdun Auditorium on October 24
Explanation:
Charest further emphasized his commitment to constitutional reform if a "No" victory was achieved.
Explanation:
What country in asia is located farthest north?
Answers
Which of the following is MOST dependent on the ability to exchange currencies?
A investing in capital goods
B
protecting domestic industries
С
encouraging entrepreneurship
D
engaging in international trade
Answers
QUESTION 4: IMPACT OF UNEMPLOYMENT AND POSSIBLE SOLUTIONS
4.1 Summarise the impact of unemployment using the following headings:
a) Personal impact
b) Social impact
c) Financial impact
Answers
Answer:
b)social impact
Explanation:
impact comes with its own social possible solutions
The territory acquired in the Mexican-American War is called the
Answers
Answer:
It ended the war, and Mexico recognized the Mexican Cession, areas not part of disputed Texas but conquered by the U.S. Army. These were northern territories of Alta California and Santa Fe de Nuevo México. ... The question of how to treat the new acquisitions also intensified the debate over slavery in the United States
Explanation:
i hope you understand better
Answer:
its the second drop down
Explanation:
Which of the following describes how many of the colonies responded after the Boston massacre
Answers
Answer:
if these are the answer Boston townspeople attacked and killed five British soldiers.
British soldiers attacked and killed five Boston townspeople.
British soldiers attacked Boston townspeople, who shot five soldiers dead.
Boston townspeople attacked British soldiers, who shot five colonists dead.
Explanation:
then the fourth on
Read then answer the question:
What do you think would be more effective in discouraging a Xiongnu invasion, walls or a large Chinese population along the border? Explain your thinking.
The Xiongnu live on meat and For the immigrants in such border cheese, wear furs, and possess no house
or field. They move like birds and
animals in the wild. They stop only at
places which abound in grass and water,
want of which will start them moving
again. Today the Xiongnu are herding at
several places and hunting along the
frontiers.... It will be profitable to you to
dispatch generals and officials together
with troops to govern the frontier areas.
People [slaves, convicts, and willing
peasants] should be selected to settle
along the border areas permanently, who
can set up families and grow food grains
while getting prepared against possible
invasion by the Xiongnu. areas, the government will construct
walled cities, well protected by high
walls, deep moats, catapults, and thorns.
Each city, along strategic points and
thoroughfares, will be designed to hold
no fewer than one thousand
households.... Each walled city will have
an inner wall and an outer wall 150
paces about 209 meters apart. Each
residential area in the outer-wall area is
to be surrounded by “sandy fields” … to
detect the intrusion of enemies in the
night [Intruders will leave footprints in
the soil.]
Answers
what is one true statement about money ?
Answers
Answer:
Explanation:
Answer:
money is a mean of exchange of good and services.
1.money is mobile
2.money is transparent
If a determined hunting supplier finds there are many others supplying goods for hunting, how could specialization help to improve his business?
A. The hunting supplier could focus on a specific product for hunting.
B.The hunting supplier could relocate to an area with fewer hunters.
C. The hunting supplier could increase the number of products he supplies.
D. The hunting supplier could sell supplies for another recreational sport instead.
Plz help
Answers
Answer:
the answer is A it Mack's sens
Answer:
A on edge 2020
Explanation: