Suppose that in a large population of students, the mean amount of sleep the previous night was u = 6.95 hours and the standard deviation was o = 1.65 hours. Consider randomly selected samples of n = 150 students. (a) What is the value of the mean of the sampling distribution of possible sample means? Mean = (b) Calculate the standard deviation, s.d., of the sampling distribution of possible sample means. (Round your answer to three decimal places.) s.d.(x) - (c) Use the Empirical Rule to find values that fill in the blanks at the end of the following sentence. (Round your answers to three decimal places.) For 68% of all randomly selected samples of n = 150 students, the mean amount of sleep the previous night will be between | and hours.
Suppose that in a large population of students, the mean amount of sleep the previous night was u = 6.95 hours and the standard deviation was o = 1.65 hours. Consider randomly selected samples of n = 150 students. (a) What is the value of the mean of the sampling distribution of possible sample means? Mean = (b) Calculate the standard deviation, s.d., of the sampling distribution of possible sample means. (Round your answer to three decimal places.) s.d.(x) - (c) Use the Empirical Rule to find values that fill in the blanks at the end of the following sentence. (Round your answers to three decimal places.) For 68% of all randomly selected samples of n = 150 students, the mean amount of sleep the previous night will be between | and hours.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose that in a large population of students, the mean amount of sleep the previous night was ? = 6.95 hours and the standard deviation was ? = 1.65 hours. Consider randomly selected samples of n = 150 students.
(a) What is the value of the mean of the sampling distribution of possible sample means?
Mean =
(b) Calculate the standard deviation, s.d., of the sampling distribution of possible sample means. (Round your answer to three decimal places.)
s.d.(x) =
c) Use the
For 68% of all randomly selected samples of n = 150 students, the mean amount of sleep the previous night will be between and hours.
(d) Use the Empirical Rule to fill in the blanks at the end of the following sentence. (Round your answers to three decimal places.)
For 95% of all randomly selected samples of n = 150 students, the mean amount of sleep will be between and hours.
Transcribed Image Text:Suppose that in a large population of students, the mean amount of sleep the previous night was µ
6.95 hours and the standard deviation was o = 1.65 hours. Consider randomly selected samples of n =
150
students.
(a) What is the value of the mean of the sampling distribution of possible sample means?
Mean =
(b) Calculate the standard deviation, s.d., of the sampling distribution of possible sample means. (Round your answer to three decimal places.)
s.d.(x) =
(c) Use the Empirical Rule to find values that fill in the blanks at the end of the following sentence. (Round your answers to three decimal places.)
For 68% of all randomly selected samples of n
150 students, the mean amount of sleep the previous night will be between
and
hours.
(d) Use the Empirical Rule to fill in the blanks at the end of the following sentence. (Round your answers to three decimal places.)
For 95% of all randomly selected samples of n =
150 students, the mean amount of sleep will be between
and
hours.
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