Suppose that in a large population of students, the mean amount of sleep the previous night was 7.2 hours and the standard deviation was or 18 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? (b) Calculate the standard deviation, sd, 14.(x)= sampling distribution of possible sample means. (Round your answer to three decimal places) (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) 150 students, the mean amount of sleep the previous night will be between for 60% of all randomly selected samples c 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 a 150 students, the mean amount of sleep will be between and
Suppose that in a large population of students, the mean amount of sleep the previous night was 7.2 hours and the standard deviation was or 18 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? (b) Calculate the standard deviation, sd, 14.(x)= sampling distribution of possible sample means. (Round your answer to three decimal places) (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) 150 students, the mean amount of sleep the previous night will be between for 60% of all randomly selected samples c 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 a 150 students, the mean amount of sleep will be between and
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Transcribed Image Text:Suppose that in a large population of students, the mean amount of sleep the previous night was 7.2 hours and the standard deviation was or 18 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.)
(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 60% of all randomly selected samples of a 150 students, the mean amount of sleep the previous night will be between
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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