a. Give the mean and standard deviation of the (repeated) sampling distribution x. μx=nothing σx=nothing (Type integers or decimals.) b. Describe the shape of the sampling distribution of x. Does this answer depend on the sample size? Choose the correct answer below. A. The shape is that of a normal distribution and does not depend on the sample size. B. The shape is that of a uniform distribution and depends on the sample size. C. The shape is that of a uniform distribution and does not depend on the sample size. D. The shape is that of a normal distribution and depends on the sample size. c. Calculate the standard normal z-score corresponding to a value of x=16.8. z=nothing
a. Give the mean and standard deviation of the (repeated) sampling distribution x. μx=nothing σx=nothing (Type integers or decimals.) b. Describe the shape of the sampling distribution of x. Does this answer depend on the sample size? Choose the correct answer below. A. The shape is that of a normal distribution and does not depend on the sample size. B. The shape is that of a uniform distribution and depends on the sample size. C. The shape is that of a uniform distribution and does not depend on the sample size. D. The shape is that of a normal distribution and depends on the sample size. c. Calculate the standard normal z-score corresponding to a value of x=16.8. z=nothing
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
A random sample of
n=100
observations is drawn from a population with a mean equal to
18
and a standard deviation equal to
10.
Complete parts a through g below.a. Give the mean and standard deviation of the (repeated) sampling distribution
x.
μx=nothing
σx=nothing
(Type integers or decimals.)
b. Describe the shape of the sampling distribution of
x.
Does this answer depend on the sample size? Choose the correct answer below.The shape is that of a normal distribution and does not depend on the sample size .
The shape is that of a uniform distribution and depends on the sample size.
The shape is that of a uniform distribution and does not depend on the sample size.
The shape is that of a normal distribution and depends on the sample size.
c. Calculate the standard normal z-score corresponding to a value of
x=16.8.
z=nothing
(Type an integer or a decimal.)d. Calculate the standard normal z-score corresponding to a value of
x=19.3.
z=nothing
(Type an integer or a decimal.)e. Find
Px<16.8.
Px<16.8=nothing
(Round to four decimal places as needed.)f. Find
Px>19.3.
Px>19.3=nothing
(Round to four decimal places as needed.)g. Find
P16.8<x<19.3.
P16.8<x<19.3=nothing
(Round to four decimal places as needed.)Expert Solution
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