Here are summary statistics for randomly selected weights of newborn​ girls: n=250​, x_=32.9 ​hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a ​95% confidence level. Are these results very different from the confidence interval 31.9 hg < μ < 34.5 hg with only 19 sample​ values, x_ = 33.2​hg, and s = 2.9 ​hg?

Answers

Answer 1

Answer:

Step-by-step explanation:

Here are summary statistics for randomly selected weights of newborn​ girls: n=250​, x_=32.9 ​hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a ​95% confidence level.

The confidence interval of mean

=32.9 ± 1.96 × 6.9/250

Confidence Interval = 32.9 ± 0.5382


Related Questions

Find m Measure of angle A =

Answers

Answer:

a = 104

Step-by-step explanation:

a = 104 because it is an inscribed angle with an arc of 208 degrees

A spinner marked off in seven ​equal-sized regions, numbered 1, 2, 3, 4, 5, 6, and 7​, is spun twice. Let the random variable X be the nonnegative difference between the numbers of the regions where the pointer​ stops, and define a probability mass function ​g(x)=​P(X=​x). ​a) State the range of X. ​b) Write g as a set of ordered pairs. ​c) Draw a probability distribution as a histogram. ​d) Find ​g(5​), and explain what this number represents. ​e) Find μ​, and explain what this number represents.

Answers

Step-by-step explanation:

To find - a) State the range of X. ​

              b) Write g as a set of ordered pairs.

              ​c) Draw a probability distribution as a histogram. ​

              d) Find ​g(5​), and explain what this number represents. ​

              e) Find μ​, and explain what this number represents.

Proof -

a.)

Range of X = { 0, 1, 2, 3, 4, 5, 6 }

b.)

(0, 7/49), (1, 12/49), (2, 10/49), (3, 8/49), (4, 6/49), (5, 4/49), (6, 2/49)

c.)

The graph is as follows :

d.)

The value of g(5) is 6/49

It represents the probability of the difference of the two spins is 5.

e.)

mean, μ = 2.29

It represents the average value of the spins

Fill in the blank with a symbol that makes this statement true: 2/5 ____ 1/2

Answers

The answer is 2/5 < 1/2


Because if you do common denominator which is 10 you get 2/5 as 4/10 and 1/2 as 5/10 so therefore 1/2 is greater

Which expressions are equivalent to the one below? Check all that apply.
9x
A. 3. 3x
B. 32.34
O C. 3.32%
D. (3.3)*
E. 3*. 3x
F. 32x

Answers

Answer:

The answer would be A. 3.3x

Step-by-step explanation:

3.3x can be broken down as 3.3.x

3.3 equals 9 and the 'x' is multiplied to 9.

Hence, it equals to 9x.

The expressions are equivalent to the 9ˣ is

3²ˣ  = 3ˣ . 3ˣ  =  (3 . 3)ˣ  = 9ˣ

Option C, D and F are correct.

What is Expression?

In mathematics, an expression is a phrase that has at least two numbers or variables and at least one math operation. Addition, subtraction, multiplication, or division are all examples of math operations. An expression's structure is as follows:

(Number/variable, Math Operator, Number/variable) is an expression.

We have to find the Equivalent Expression to

So, we will check each option one by one as

1. 3² * 3ˣ

[tex]3^{2+x[/tex]  ≠ 9ˣ

2. 3 * 3²ˣ

[tex]3^{1+2x[/tex] ≠ 9ˣ

3. 3²ˣ  

= (3²)ˣ

= 9ˣ

4. 3ˣ x 3ˣ  

= 3(ˣ⁺ˣ)

= 3²ˣ

= (3²)ˣ

= 9ˣ

5. 3 x 3ˣ ≠ 9ˣ

6. (3 . 3)ˣ  

= 9ˣ

Learn more about Equivalent Expression here:

https://brainly.in/question/4185961

#SPJ7

Does this data determine a linear function?
A) Yes
B) No

Answers

Answer:

A) yes

Step-by-step explanation:

No, it doesn’t, this is not a linear function

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Hint: the sample proportion ( p hat) is x/n. n=195, x= 162; 95% confidence

Answers

Answer:

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. 16)n = 182, x = 135; 95 percent

✓ 16)n = 182, x = 135; 95 percent sample proportion: p-hat = 135/182 = 0.74 E = 1.96*sqrt[0.74*0.26/182] = 0.0637 95% CI: 0.74-0.0637 < p < …

Which statement best describes the association between variable X and variable Y?

perfect negative association

moderate positive association

no association

strong negative association

Answers

Answer:

no association

Step-by-step explanation:

I just took the k12 test.

The first sequence rule is add 5 starting from 20. The second sequence rule is subtract 7 starting from 56. What is the first number that appears in both sequences?

25
28
42
35

Answers

Answer:

35

Step-by-step explanation:

its the 4th step your welcome

20-25-30-35

56-49-42-35

Answer: 35 I got it correct on the quiz

Step-by-step explanation:

: If m∠2=85.1° m ⁡ ∠ 2 = 85.1 ° , then what is m∠4 m ⁡ ∠ 4 ?

Answers

Answer:

In what figure?

I cannot determine the answer without proper information.

Six years ago Matt was four times as old as Brown, and in 3 years the sum of their ages will be 43 years. Find their present ages.

Answers

Answer:

matt=26 brown=11

Step-by-step explanation:

use ur brain and do it backwards or look at the guy above me

Convert the fraction 6/10 to a decimal.

Answers

Answer:

0.60

Step-by-step explanation:

Answer:

.60

Step-by-step explanation:

you took a test in social studies that was worth 100 points. how many points will you have to earn to get 88%?​

Answers

Answer:

88 points.

Step-by-step explanation:

Answer:

You will have to have 88 points i think

Step-by-step explanation:

Use the graph below to answer questions 1−4
1. What are the coordinates of point F?
A. (7, 5)
B. (7, −5)
C. (−5, 7)
D. (5, −7)

2. Which point is located at (−2, −6)?
A. F
B. G
C. H
D. K

3. Which point is located in quadrant IV?
A. G
B. J
C. K
D. L

What are the coordinates of point M?
A. (1, −3)
B. (−3, 1)
C. (3, −1)
D. (−3, −1)​

Answers

1: F is equal to (7,-5) and 2 is equal to K and 3 is equal to B and 4 is equal to B

32 / (-4) . 3 - (-1)

Answers

87 yes yes yes ok ok ok ok

Answer:

-32

Explanation:

32/ -4 = -8

3 - -1 = 3+1 = 4

-8x4 = -32

find the value of x. 5.1 perp and angle bisectors geo

Answers

Answer:

7

Step-by-step explanation:

4x+30=9x-5

35=5x

x=7

Using the distributive property, an expression equivalent to 48 + 30 is
5 (6 + 8).
(6) (8) + (3) (10).
(3) (16) + (6) (5).
6 (8 + 5).

Answers

Answer:

d. 6(8+5)

Step-by-step explanation:

First you distribute the 6 to the 8 which gets you 48 and then you distribute the 6 to the 5 to get 30

so you would get 48+30

therefore, d is true

Answer: (6) (8) + (3) (10) and (3) (16) + (6) (5) and 6 (8 + 5) all of them is the same answer as 48+30=78

Step-by-step explanation: Hope this help:D

What is the length of BE?
14 units
17 units
27 units
34 units

Answers

Answer:

you have to give is more than that

Step-by-step explanation:

mb 27

Answer:

the length of BE is 27 units

Step-by-step explanation:

please solve below !!

Answers

Answer:

square root of 113 or 10.6

Step-by-step explanation:

7^2+ 8^2= C

49+64=C

113=C

square root of 113 OR 10.6

Hope this helped :)

Answer:

The answer is: 10.63

Step-by-step explanation:

7^2+8^2=c^2

113=c^2

sqrt113

10.63

can i get brainliest

Can someone please help me out with this?

Can someone please help me out with this? I reckon that the answer would be A because its just the median of the median so that would x out median and B and D simply don’t make sense to me. Do you guys agree with me or not? I just wanna make sure I am thinking about this the right way.

Put the word “aware” before or after your answer if your gonna send a link. I would like to know if they are bots. (99% sure they are)

Answers

Answer:

B (range)

Step-by-step explanation:

The IQR would actually increase, because the Q1, Q2, and Q3 would get most likely larger. (Or possibly stay the same).

The median would most likely increase, possibly stay the same.

The maximu would stay the same.

The range would decrease, because right now it’s 13, so without the outlier, the minimum value would be closer to the rest of the data.

Michelle opened an
interest-bearing savings
account. She deposited $8,750
into the account. If the account
earns 1.3% interest, what will
be Michelle's balance after two
years?

PLEASE HELP

Answers

The answer is 2,275

The percent turns from 1.3 to .013
Multiply the deposit and the time
After, multiply that amount that you get by the decimal( .013) and that will be your answer

Can u guys help me pls ill give u 20 points

Answers

Answer:

Its either L or N im not sure but if i had to guess out of the two i think its L.

Step-by-step explanation:

A line goes through the points (-3,-6) and (6,9). Find the slope

Answers

Answer:

5/3

Step-by-step explanation:

slope = (difference in y)/(difference in x) = (-6 - 9)/(-3 - 6) = -15/(-9) = 5/3

Answer: 5/3

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Save & Eat
Question 1
Part A
Graph the equation y = -50% - 100 by going to your math tools and opening the Graph tool. Set the scale of the y-axis to range from -150 to 50, and
set the x-values to range from 5 to 10. Paste a screenshot of your graph in the answer field.
B IV X
Font Sizes
A-A-EZ
Characters used: 0/ 15000
Submit

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find the area of this LEVEL 1 shape

Answers

Answer:

[tex]46 cm^{2}[/tex]

Step-by-step explanation:

Split the shape into two like in the picture shown below. Then, you can find the area of the two shapes separately, and then add them together the two area together. So by following the picture I below, you would do:

[tex]5*2=10\\6*6=36\\10+36=46[/tex]

4/5-2/3 in simplest term​

Answers

Answer: =2/15

Step-by-step explanation: Hope this help :D

Answer:

2/15

Step-by-step explanation:

4/5 - 2/3

Step 1: Find a common denominator. 5 and 3 don't share any factors other than 1, so multiply them to get 15.

12/15 - 10/15

(12 - 10)/15

Step 2: Subtract 10 from 12 to get 2.

2/15

4/5 - 2/3 simplified is 2/15.

a. Write the following expression in standard form by expanding and collecting like terms.

3(4a + 6) + 2(a – 10)

Answers

Answer:

14a   -2

Step-by-step explanation:

3(4a + 6) + 2(a – 10)

Distribute

12a+18   +2a -20

Combine like terms

12a+2a   +18 -20

14a   -2

Answer:

14a-2

Step-by-step explanation:

12a+18+2a-20

What is the lateral area of the pyramid

Answers

Answer:

43.75 ft²

Step-by-step explanation:

[tex]s_l[/tex] = (l√(w/2)² + h²) + (w√(l/2)² + h²)

l & w become 3.5, and h becomes 6.

[tex]s_l[/tex] = (3.5√(3.5/2)² + 6²) + (3.5√(3.5/2)² + 6²)

Step 1:Because this is a square pyramid, what you see above essentially becomes what you see below.

[tex]s_l[/tex] = 2(3.5√(3.5/2)² + 6²)

Step 2: Divide 3.5 by 2 to get 1.75.

[tex]s_l[/tex] = 2(3.5√1.75² + 6²)

Step 3: Square both 1.75 and 6 to get 3.0625 and 36 respectively.

[tex]s_l[/tex] = 2(3.5√3.0625 + 36)

Step 4: Add 3.0625 and 36 to get 39.0625.

[tex]s_l[/tex] = 2(3.5√39.0625)

Step 5: The square root of 39.0625 is 6.25.

[tex]s_l[/tex] = 2(3.5 * 6.25)

Step 6: Multiply 3.5 by 6.25 to get 21.875.

[tex]s_l[/tex] = 2(21.875)

Step 7: Multiply 2 by 21.875 to get 43.75.

[tex]s_l[/tex] = 43.75 ft²

The lateral area of this pyramid is 43.75 ft².

Help please I’m so behind

Answers

Answer: 5 and 27 as remainder

Step-by-step explanation:

PLS HELP ASAPPP
I really need help

question: write in standard form.

2x^2+x^3-3+4x^5

Answers

Answer:

4x^5 + x^3 + 2x^2 -3

Step-by-step explanation:

Standard form is ( put simply ) the order the numbers are from highest to lowest. So the standard form of the equation would be 4x^5 + x^3 + 2x^2 -3

4x^5 +x^3+2x^2−3

hope this helps!


Amelia went to the candy store and bought 5/6 of a pound of candy. If 1/2 of Amelia's candy
was chocolate, how many pounds of chocolate candy did Amelia buy?

Answers

Answer:

5/12 pounds of chocolate

Step-by-step explanation:

converting 5/6 to 10/12, half of that is is 5/12. hope this helps !!! :D

Answer: 5/12 or about 0.42

Step-by-step explanation:

You are looking for 1/2 of 5/6

5/6 times 1/2 = 5/12

I hope it helps!

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