In two common species of flowers, a and b, the proportions of flowers that are blue are pa and pb , respectively. Suppose that independent random samples of 50 species-a flowers and 100 species-b flowers are selected. Let pˆa be the sample proportion of blue species-a flowers and pˆb be the sample proportion of blue species-b flowers. What is the mean of the sampling distribution of pˆa−pˆb ?.
The mean of the sampling distribution is [tex]{p_{a}}-p__b}[/tex]
The mean of a sampling distribution is the population mean from which values are sampled. For a population of mean μ, the mean of the sampling distribution is [tex]\mathbf{ \mu_x}[/tex]
∴
[tex]\mathbf{\mu_x = \mu}[/tex]
From the parameters given:
Suppose that independent random samples of 50 species-a flowersand 100 species-b flowers are selectedwhere;
[tex]\mathbf{\hat p_a}[/tex] = sample proportion of blue specie-a[tex]\mathbf{\hat p_b}[/tex] = sample proprotion of blue specie-bThe mean of the sampling distribution of [tex]\mathbf{\hat p_a -\hat p_b}[/tex] is [tex]{p_{a}}-p__b}[/tex]
Learn more about mean of the sampling distribution here:
https://brainly.com/question/12892403
Drugs always produce the same sensation in first-time users. Please select the best answer from the choices provided t f.
Answer:
False.
Explanation:
Every time you take a drug the sensation is always going to be different. Often times, this leads to drug addiction because most addicts take drugs over and over again to reproduce those same effects on their brain.
Which excerpt from the passage best supports that agatha valued the opinions of the gods and goddesses more than the opinions of any human?.
When a person is said to value the opinions of the gods and goddesses over than of any human, then it can be noted that the person believes that the gods are superior.
With this in mind, after reading the excerpt, you should search for clues about the places in the narration where the character seemed to favor the gods and believe them explicitly over any human.
Please note that your question is incomplete so I gave you a general overview so that you could get a better understanding of the concept.
Read more about opinions here:
https://brainly.com/question/24798153
Dianne wants to know if the new learning modalities in the first semester affects the academic performance of senior high students. He took all the lists of all students in her school and selected every 6th name to be part of her study.
Based on the information given, it can be deduced that a stratified sampling method was used.
It should be noted that a stratified sampling method was used by Dianne. This is a method where large amounts of data are divided into smaller groups and then, samples will be chosen for examination.
From the complete question, the justification is that Dianne chose a sample that isn't based on probability as the samples are chosen at random. She wanted to know the relationship between the academic performance of students and the new learning modalities.
Learn more about sampling on:
https://brainly.com/question/17831271
Which step is the first one in the social security process brainly.
Which ion in the ground state has the same electron configuration as an atom of neon.
Answer:
Highlight to reveal answers and explanations
Questions Answer
38 Which ion in the ground state has the same electron configuration as an atom of neon in the ground state? (1) Ca2+ (2) Cl- (3) Li+ (4) O2-
Answers
4
1
1
Which describes an example of using unsecured credit?.
Answer:
An example of it is that someone buys new gutters for a home with a credit card. That a simple way to explain it and the answer should be about it xd
Explanation:
A hot air balloon holds 1,592 cubic meters of helium. The density of helium is 0. 1785 kilograms per cubic meter. How many kilograms of helium does the balloon contain, rounded to the nearest tenth of a kilogram?.
[tex]density = mass \: volume 1592 = mass 0- 1785 :. \\ \\ \\ mass : 1592 × 0.1785 284- 172 284 . 2 kq ". \\ \\ \\ mass \: of \: helium \: is 284.2
[tex]density=mass\:volume 1592 = mass 0-1785 :. \\ \\ \\ mass : 1592× 0.1785 284- 172 284 . 2 kq ". \\ \\ \\ mass \: of \: helium \: is 284.2[/tex]
Select all that apply. Check the context clues formedley from the passage by sherwood anderson. Fiddlers tuned room above the store broken sounds shining red faces band played loud blare murmur of voices.
Answer:
1. fiddlers tuned
2. broken sounds
3. band played
4. loud blare
5. murmur of voices
Explanation:
Before writing a composition it is best to.
Answer: Before you start writing, remind yourself of the basic composition composition. Almost all articles have three parts: introduction, body of information and conclusion. The five-paragraph text is a common repetition of this and includes an introductory paragraph, three body paragraphs, and a conclusion paragraph.
Explanation:
rank order the vendors, keeping the seasonal product team’s needs in mind.
Based on the information given, the ranking will be Vendor B, Vendor D, and Vendor C.
Vendor B must be the first vendor to be chosen because it is the dominant vendor across all the three vendors stated in the question and has better ratings when compared to other vendors.
Vendor D is the second choice of vendor since it outperforms Vendor C. Vendor C must be the third choice of vendor since, in case of flexibility and timely product shipment, vendor D outperforms it.
Learn more about vendors on:
https://brainly.com/question/24852211
In the poem by william shakespeare (published in 1609), the speaker contemplates the value of love. Read the poem carefully. Then, in a well-written essay, analyze how shakespeare uses poetic elements and structural techniques to construct a statement about the complex interaction between self-esteem and love.
There are different kinds of Poetic elements. The poetic element and structural techniques used are couplet, sonnet, Rhyme Scheme, Iambic pentameter.
Sonnet: A sonnet is simply defined as a fourteen lined poem that is offten written in iambic pentameter. This Shakespearean sonnet is known to have one octave and sestet.
Couplet: not that there is always good and well written lines of verse in a couplet, and they are found in the same meter and often linked by rhyme. In this poem, the sonnet was known to have ended with a couplet. This therefore depicts the key or central idea of the poem.
Rhyme Scheme: The rhyme scheme in this poem is known to be accompanied by a full sonnet called ABAB CDCD EBEB FF.
Iambic Pentameter: It is commonly known to be a type of meter that is known to also have five iambs. This poem is known to have Iambic Example given is quoted below “When in disgrace with Fortune and men’s eyes.”
The literary devices used in this poem are Assonance, imagery, consonance, etc.
Learn more about the poem from
https://brainly.com/question/14977966
List down all the foods and drinks you ate for breakfast snacks lunch and dinner yesterday.
Answer:
Breakfast: pancakes and strawberries. Snacks: Cheeto, potato sticks, babybelle cheese. Lunch: fruit salad, and Starbuck. Dinner: pizza from dominos. Dessert: vanill icecream. ✌️
Oil refining is an example of:
Construction Production
Extractive Production
Domestic Production
Traditional Production
If the same amount of heat is added to 25. 0 g of each of the metals, which are all at the same initial temperature, which metal will have the highest temperature?.
Match each sentence with the type of dependent clause it includes.
Answer:
Where are the sentences? I think we need it.
Answer:WHEN YOU GET READY IS ADVERBIAL CLAUSE,WHATEVER YOURE DOING IS NORMINAL CLAUSE,WHO ARE GOING IS ADJECTIVAL CLAUSE.
Explanation:just did it
The security system in a house has two units that set off an alarm when motion is detected. Neither one is entirely reliable, but one or both always go off when there is motion anywhere in the house. Suppose that for motion in a certain location, the probability that detector a goes off and detector b does not go off is 0. 25, and the probability that detector a does not go off is 0. 35. What is the probability that detector b goes off?.
The probability that detector B goes off is 0.75
The probability of an event is known to be the likelihood or chance for an event to occur.
From the given information let consider:
A = the time when detector A goes off, andB = the time when detector B goes offSince one or both of them always goes off, then:
P(A or B) = 1∴
Their complements will be zero, i.e.
P(A' and B') = 0Similarly, we are given that:
P(A and B') = 0.25Then;
P(A') = 0.35∴
The set probability for A will be:
P(A) = 1 - P(A')
P(A) = 1 - 0.35
P(A) = 0.65
Finally, the probability that detector B goes off can be computed as:
P(B) = P(A) P(B|A) +P(A') P(B|A')
P(B) = P(A) (1 - P(B|A')) + P(A') (1 - P(B'|A')
[tex]\mathbf{P(B) = P(A) (1-\dfrac{P(A \ and \ B')}{P(A)}) +P(A') (1 - \dfrac{P(A' \ and B')}{P(A')})}[/tex]
[tex]\mathbf{P(B) = 0.65 (1-\dfrac{0.25}{0.65}) +0.35 (1 - \dfrac{0}{0.35})}[/tex]
P(B) = 0.75
Learn more about the probability of an event here:
https://brainly.com/question/25839839
Complete the equation of the line through (-9 7) and (-6 -3).
Write a paragraph. Include all your work from steps one through five below for your teacher to see. Choose the topic that you wish to develop. Select a topic that is suitable and narrow enough for a one-paragraph development. List and number the ideas you will use to support and develop the main idea. Arrange and re-number the supporting and developing ideas in the most logical order. State the method which you are using to develop the main idea. Write the topic sentence, and a good clinching sentence. Write a coherent, unified paragraph based on steps one through four.
Answer:
India was the best of it has many and more it was consists of moving moving moving and going towards the world I am coming and its its kind a good and ok bye
Which is a type of heat transfer that causes the air at the top floor.
Explanation:
Convection is the the transfer of heat my the physical movement of hot masses of air. As air is heated, it expands (as do all objects). As it expands, it becomes lighter then the surrounding air and it rises.
If the number of giraffes at congtin were reduced by 63.
Based on the information given, it can be noted that the computation shows that the ratio will be 3:7.
From the complete question, the data given was:
Giraffes = 124Other = 108New giraffe = 124 - (63% × 124) = 45Therefore, the ratio will then be:
= 44:88 = 3:7
In conclusion, the ratio is 3:7.
Learn more about ratio on:
https://brainly.com/question/2328454
The human heart is responsible for pumping blood ____ the body.
The responsibility of the human heart is for pumping blood; from the coronary arteries
The coronary arteries are a connection of arteries deliver blood to the heart muscle. This delivery of blood to the heart muscle provides a continuous supply of oxygen as well as nutrients that it requires to remain healthy and function normally.
Now, when the heart receives the blood, it in turn pumps it to other tissues and parts of the body.
Read more on coronary arteries at; https://brainly.com/question/8329409
Why is human capital important index important for a country brainly.
Answer:
Human capital
Explanation:
The term human capital refers to the economic value of a worker's experience and skills. Human capital includes assets like education, training, intelligence, skills, health, and other things employers value such as loyalty and punctuality.
Why were savings and loans (s&ls) originally established?.
Answer:
Building and loans originally were established for working class people who wanted to buy homes but did not have access to banks.
Explanation:
Answer:
To help people buy homes ( D )
Explanation:
I just took the test on edge!
Which set of word clues best helps the reader to determine what the character is like?.
Answer:
What character? there's no pic of the context ur asking for
Harmony of the design is ensured by _______________ design principle.
The design principle that ensures Harmony of the design is; Theme
Harmony of the design is simply defined as the concept whereby all the elements and principles of design work together to display visually pleasing garment.
Now according to principles of design, this concept of harmony of design is usually ensured by the theme design principle. This is because the theme design principle is the only one that ensures a display of visually pleasing garment.
Read more on principles of design at; https://brainly.com/question/2306768
Which description represents this equation? 7x – 2 = 33.
Answer:
[tex]7x - 2 = 33 \\ 7x = 33 + 2 \\ 7x = 35 \\ x = 5[/tex]
I hope it helps you
Appeals to a desire for safety and self-actualization are examples of ___________. A. Logical appeals b. Emotional appeals c. Credibility appeals d. Selective appeals.
Answer:
This would be an example of Emotional Appeals
Explanation:
These are when people are messing with the emotions of other people and try to win on their side of an argument.
I hope this helps
Answer:
b
Explanation:
Which of the following describes the effect of high altitude on climate.
The statement which best describes the effect of high altitude on climate is: temperatures are lower.
A climate can be defined as the long-term average atmospheric conditions (weather) that is prevailing in a geographical region and persists for a very long period of time.
Generally, some of the factors that affect the climate of a geographical region include the following:
Earth surfaceTopographyGlobal wind patternsLatitudeAtmospheric pressureAltitude (elevation).According to meteorologist, an effect of high altitude on climate is that the temperatures in the particular geographical region are lower, especially due to the height of this region above sea level.
In conclusion, an effect of high altitude on climate is colder temperatures in a particular geographical region.
Read more on climate here: https://brainly.com/question/827519
What is the primary purpose of these stage directions? to show interactions between characters to direct actions that take place onstage to describe a character’s appearance to indicate a character’s tone of voice.
Answer:
B) to direct actions that take place onstage
EDGE2022
Answer:
B. to direct actions that take place onstage
Explanation:
What is the primary purpose of these stage directions?
To direct actions that take place onstage