For a 4-units class like Statistics, students should spendaverage of 12 hours studying for the class. A survey wasdone on 28 students, and the distribution of total studyhours per week is bell-shaped with a mean of 14 hours anda standard deviation of 2.9 hours.Use the Empirical Rule to answer the following questions.a) 68% of the students spend betweenhours andhours on Statistics each week.b) 95% of the students spend betweenhours andhours on Statistics each week.c) 99.7% of the students spend betweenhours andhours on Statistics each week.

It is given that the distribution is bell shaped that means it is the normal distribution which has…

Answered: For a 4-units class like Statistics,…

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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For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 22 students, and the distribution of total study hours per week is bell-shaped with a mean of 12 hours and a standard deviation of 2.6 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week. Check Answer 100% 69°F Cloudy
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According to the Department of Education the mean number of hours college students spend studying each week follows a normal distribution with a mean of 20 hours and standard deviation of 9 hours. What ‘hours of study’ represents the 90th percentile? What ‘hours of study’ represents the 15th percentile?
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For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 30 students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 2.7 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week.

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