Question 1Theattendaverage ageofa Sample of 17 South African womenyoga classeswas found to be 31 years, with aStandard deviation ofconficlence interval for the true average age of all3,5 years. Construct a 991.South African women who attendyoga classesa) 28,52≤ №≤ 33.48<b) 26.88

using excel we find critical value

Answered: The attend a Sample of 17 South African…

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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At a college the scores on the chemistry final exam are approximately normally distributed, with a mean of 73 and a standard deviation of 11. The scores on the calculus final are also approximately normally distributed, with a mean of 78 and a standard deviation of 12. A student scored 79 on the chemistry final and 81 on the calculus final. Relative to the students in each respective class, in which subject did the student do better? a) Calculus b) There is no basis for comparison c) Chemistry d) The student did equally well in each course e) None of the above
Q4) Data of 100 students' score was recorded. The arithmetic mean and standard deviation were 60 and 15 respectively. After checking, it was found that there was an error recording the scores of 2 students. The incorrect scores were 27 and 40, while the :correct scores were 72 and 45. Thus * إجابتك :Q4) a) The correct arithmetic mean is 59.25 O 60.5 61.25 O none of all above O
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A credit score measures a person's creditworthiness. Assume the average credit score for Americans is 693. Assume the scores are normally distributed with a standard deviation of 45. a) Determine the interval of credit scores that are one standard deviation around the mean. b) Determine the interval of credit scores that are two standard deviations around the mean. c) Determine the interval of credit scores that are three standard deviations around the mean. a) The interval of credit scores that are one standard deviation around the mean ranges from (Type integers or decimals. Use ascending order.) b) The interval of credit scores that are two standard deviations around the mean ranges from (Type integers or decimals. Use ascending order.) c) The interval of credit scores that are three standard deviations around the mean ranges from (Type integers or decimals. Use ascending order.) to to to W
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The attend a Sample of 17 South African women was found to be 31 years, with Standard deviation of 3,5 years. Construct a 99%. conficlence interval for the true average age of all South African women who attend yoga classes of classes average age yoga a) 28,52≤ №≤ 33.48 b) 26.88