Answer:
we conclude that mean DL reading for current smokers is significantly lower than 100 DL
μ ≤ 98.32
Step-by-step explanation:
Given :
H0 : μ = 100
H1 : μ < 100
Given the sample data:
103.768 88.602 73.003 123.086 91.052
92.295 61.675 90.677 84.023 76.014
100.615 88.017 71.210 82.115 89.222
102.754 108.579 73.154 106.755 90.479
Sample mean, xbar = 89.855
Sample standard deviation, s = 14.904
Test statistic :
(Xbar - μ) ÷ (s/√n)
(89.855 - 100) /(14.904/√20)
-10.145 / 3.3326357
Test statistic = - 3.044
Pvalue : using the Pvalue from T score calculator :
Pvalue = 0.00333
Pvalue < α ; Reject H0
Hence, we conclude that mean DL reading for current smokers is significantly lower than 100 DL.
b. Find a 99% upper one-sided confidence bound for the mean DL reading for current smokers. Does this bound confirm your conclusions in part a?
Tcritical at 99% (one sided) = 2.54
Upper confidence interval :
Xbar ± standard Error
Standard Error = Tcritical * s/√n
Standard Error = 2.54 * 14.904/√20 = 8.465
Upper boundary:
Xbar + standard error
89.855 + 8.465 = 98.32
μ ≤ 98.32
Look at the problem below.
p + q = 17
If p = 8, what is q?
B. II
A. 25
C. 9
D. 8
Answer:
C
Step-by-step explanation:
8+q=17
17-8=9
The answer is 9
You would replace p in the equation with 8, then subtract 8 from 17 leaving you with 9
Number the lengths in order from shortest to longest. 2ft. 1yd. 9 ft. 18 in. 2 yd. ??
Answer:
18in.,2ft.,1yd.,2yd.,9ft.
Step-by-step explanation:
18 inches is 1 foot and 6 inches so its the smallest. 2 feet is smaller than a yard so it goes next.After that is the yard it is 3 feet so thats why it goes after 2 feet.2 yards is 6 feet and 9 feet is bigger than 6 so thats why its the last.
Answer:
18 inches inches is 1 foot and 6 inches so its the smallest. 2 feet is smaller than a yard so it goes next.After that is the yard it is 3 feet so thats why it goes after 2 feet.2 yards is 6 feet and 9 feet is bigger than 6 so thats why its the last.
What is the volume of the sphere below?
A. 500/3 pie units 3
B.100/3 units 3
C. 25/3pie units 3
D. 125/3 pie units 3
Answer:
A. 500/3π units³
Step-by-step explanation:
The volume of a sphere is given by 4/3πr³:
4/3π5³
4/3π125
500π/3
i will give branlest if your wright
Answer:
I think the answer is D
or A
During a two-day golf tournament, Juan scored −4 on the first day and −6 on the second day. What was his overall score for the tournament?
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Score on first day = - 4
Score on second day = - 6
Total score = ?
Total score = Score on first day + score on second day
Total score = - 6 + - 4
Total Score = -10
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Another way to describe the area of a triangle is by saying it is half a _____?
Answer: Another way to describe the area of a triangle is by saying it is half of the product of its base and height
Step-by-step explanation:
Write an equation for each situation. Then solve.
a. Karyl has x tickets for rides at the carnival. Her sister has twice as
many tickets. Together they have 18 tickets. How many tickets does
Karyl have?
Answer:
Step-by-step explanation:
Step 1: let's divide the total tickets into 2 respectively ie 18÷2=9
Step2: nw let's divede the 9 into 2 respectively and that give us 4.5. since her sister has as twice if many tickets therefore karyl has 4.5 tickets.
PLSS
HELP
WILL
GIVE
BRAINLIST
DUR RN
Answer:
Hello! answer: 29.5
Step-by-step explanation:
To find area for rectangles you just do base × height our base being 5.9 and our height being 5 now we just multiply these together so 5.9 × 5 = 29.5 so 29.5 is the area hope this helps!
There are 12 kids in this class including you. If every person shakes hands with every other person, how many handshakes will there be all together?
Answer: 132 handshakes in total
Step-by-step explanation: 11x12 because one of them will be the one shaking hands with everyone else so he would have gotten 11 hands shaked so everyone would have gotten their hands shaked 11 times
Question 2
A forest ranger in an observation tower sees a bear 15 miles to the north. The ranger also knows
there are campers located 19 miles due west of her post.
To the nearest mile, how far are the campers from the bear?
O 24 miles
O 5 miles
21 miles
O 34 miles
Answer:
24 miles
Step-by-step explanation:
Please find attached a diagram explaining the question
this would be solved using Pythagoras theorem
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
15² + 19²
225 + 361
586
the square root of 586 = 24 miles
In some 4.0 grading systems, a student's grade point average (GPA) is calculated by assigning letter grades the following numerical values. A=4.00, B-=2.67, D+=1.33, A-=3.67, C+=2.33, D=1.00, B+=3.33, C=2.00, D-=0.67, B=3.00, C-=1.67, F=0.00.
Answer:
i dont get it
Step-by-step explanation:
The histogram represents the time it takes employees to get to work each morning.
Which statement correctly describes the data?
The data is skewed left because the time it takes employees to get to work tails off to the left.
The data is skewed left because the time it takes employees to get to work tails off to the right.
The data is skewed right because the time it takes employees to get to work tails off to the right.
The data is skewed right because the time it takes employees to get to work tails off to the left.
Answer:
The answer is C. The data is skewed right because the time it takes employees to get to work tails off to the right.
Step-by-step explanation
Answer:
c
Step-by-step explanation:
it make more sense
What is the area, in square inches, of the trapezoid below?
14.6 in
6.7 in
19.6 in
7.9 in
Answer: A =
in?
Submit Answer
Answer:
140.16
Step-by-step explanation:
Find the area of the figure. (Sides meet at right angles.) pls help i suck at math if you help me i can help with English or something like that thx
Answer:
28 square ft
Step-by-step explanation:
the whole rectangle is 5X8 = 40
Now subtrast 2 rectangle of 2x3
2(2x3) = 2x6 = 12
40-12 = 28
In the triangle shown, determine Angle A to the nearest degree.
A
12 m
10 m
R
M
Answer:
12.............................Answer:
12 m
Step-by-step explanation:
this is anwer
I would appreciate it if someone could help answer this problem:)
Answer:
for interior angel use (n-2)180
Step-by-step explanation:
9-2 times180
7 times 180
1260
one interior angle is 1260/9
140
Pls help. Don't answer if you don't know.
Answer:
The answer is C.
Step-by-step explanation:
It is 180÷5=36. n is basically just symbolizes 180, and b is the number of candles in each box.
The mean high temperature on a particular day in January is 31 degrees F and the standard deviation is 8.7 degrees. One year, the temperature was 52 degrees F on that day. What is the Z-score for that day's temperature? Round to the appropriate number of decimal places for Z-scores. Is this temperature significantly high? (greater than 2)
Answer:
jsjs gnckdoesosensjkcjbdjd
Solve the inequality. graph the solution given below
2 < -y/5
Answer:
[tex]y<-10[/tex]
Step-by-step explanation:
[tex]2<\frac{-y}{5}[/tex]
Switch sides
[tex]\frac{-y}{5} >2[/tex]
Multiply both sides by 5
[tex]\frac{5(-y)}{5}>2*5[/tex]
Simplify
[tex]-y>10[/tex]
Multiply both sides by -1 (reverse the inequality)
[tex](-y)(-1)<10(-1)[/tex]
Simplify
[tex]y<-10[/tex]
Graph down below.
The depth of a river at flood stage is marked as "O" on a tall pole in the middle of a riverbank. The pole is marked in 1-foot intervals above
and below 0 to show the current depth of the water.
Drag a value and a word to the blanks to complete the sentence.
When the water level is at the "-4" mark on the pole, the river is
feet
the flood stage.
Answer:
When the water level is at the "-4" mark on the pole, the river is 4 feet below the flood stage.
Step-by-step explanation:
Given
[tex]Flood\ stage = 0[/tex]
Required
What does -4 represents
From the question, we can deduce that:
[tex]Above = +ve\ intervals[/tex]
[tex]Below = -ve\ intervals[/tex]
-4 belongs to the "below" category.
Hence, -4 mark represents 4 feet below the flood stage
look at pic 10 pts will mark brainilest
Answer:
A
Step-by-step explanation:
It’s a
Answer:
A
Step-by-step explanation:
this isa because the 2 rectangles on the net will make the sides and the triangles will finish the prism when u fold it it will be a rectangular prism plz mark me brnliest ill send u friend request
Jay places $3200 in an investment account earning 4.1% interest compounded weekly. How much money would he have in the account after 5 years, if he made no deposits or withdrawals during that time?
Answer:
A = $3,926.71
Step-by-step explanation:
Given: Principal (P) = $3200, Annual Rate (R) = 4.1%, Time = 5 years
To find: How much money would he have in the account after 5 years, if he made no deposits or withdrawals during that time?
Formula: [tex]A = P(1 + r/n)^nt[/tex]
Solution: Compound interest is one of the most important concepts to understand when managing your finances. It can help you earn a higher return on your savings and investments, but it can also work against you when you're paying interest on a loan
First, convert R as a percent to r as a decimal
r = R/100
r = 4.1/100
r = 0.041 rate per year,
Then solve the equation for A
A = P(1 + r/n)[tex]^{nt}[/tex]
A = 3,200.00(1 + 0.041/12)[tex]^{(12)(5)}[/tex]
A = 3,200.00(1 + 0.003416667)[tex]^{(60)}[/tex]
A = $3,926.71
Hence, Jay would have $3,926.71 after 5 years is if he made no deposits or withdrawals during that time.
Neee help right answers please
Answer:
Step-by-step explanation:
Divided the first 2 numbers by eachother and then by four use a calculator
Answer:
1146198.07
Step-by-step explanation:
Find the value of x in the circle below.
Answer:
I think x=7
7x=9 * 21
How many milligrams are equal to 3.06 grams? 0.00306 mg 306 mg 3,060 mg 306,000 mg
Answer:
3,060
Step-by-step explanation:
Multiply the mass value x 1000
3.06 x 1000= 3,030
There are 3060 milligram in 3.06 grams.
What is Measurement unit?A measurement unit is a standard quality used to express a physical quantity. Also it refers to the comparison between the unknown quantity with the known quantity.
We have to given that;
The number is,
⇒ 3.06 grams
Since, We know that;
1 gram = 1000 milligrams
Hence, We get;
⇒ 3.06 grams = 3.06 x 1000 milligrams
= 3060 milligrams
Thus, There are 3060 milligram in 3.06 grams.
Learn more about the measurement unit visit:
https://brainly.com/question/777464
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I need help asap for the math
Can somebody please help me and tell me what the error is!! PLEASE I NEED HELP ELSE I WILL FAIL MY CLASS AND GO TO SUMMER SCHOOL SO PLESE HELP ME!
Continue filling in the valleys for the leaves of the remaining data items in the set.
54, 60, 70, 70, 75, 78, 79, 81, 86, 86, 86, 89, 91, 91, 91, 91, 91, 96
Answer:
6 6 9
1 1 1 1 1 6
Step-by-step explanation:
If 5 | 4 is 54, then 86 is 8 | 6, 89 is 8 | 9 and so on.
7. A city is building a fence around a rectangular playground. If the perimeter of the playground is 100 feet and the length of one side of the fence is 32 feet, what is the width of the playground?
Answer:
100-32=68
Step-by-step explanation:
there are 68 feets on the playground
I found out that I do not have honors math for the coming school year and instead have a regular math class… i am disappointed because I always have been in honor classes and then this happens not sure how this happened but I can’t change it.. but is regular math class just as good as honors? what are the differences between the two
Answer:
well in my school its that in honors math you are doing the math of next year kinda like ap math and regular your doing your school year math but im not fully sure if it works like that every where
Step-by-step explanation:
Answer: it’s just as good as honors but you go faster and it’s a bit more complicated in honors classes for me at least it’s nothing too bad (this is my school system so it might be different for everyone :P)
Step-by-step explanation:
I have almost all honors except math too cause maths isn’t my favorite subject and I’m not so good at it :> I still get good grades tho so ya honors=regular—> mostly the same, has some differences