A random sample of 12 second-year university students enrolled in Probability and Statistics course was drawn. At the course's completion, each student was asked how many hours s/he spent doing homework in statistics. The data arelisted below.2828 2216 27 17 25 15 26 2219 17It is known that the population standard deviation is o = 10. The instructor has recommended that students devote 2 hours per week for the duration of the 12-week semester, for a total of 24 hours.Test to determine whether there is evidence at the a = 0.03 significance level that the average student spent less than the recommended amount of time.Part ACalculate the sample mean:x =Calculate the value of the standardized test statistic:

The population standard deviation is 10.

Answered: A random sample of 12 second-year…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The mean salary offered to students who are graduating from Coastal State University this year is $ 24,215 , with a standard deviation of $ 3678 . A random sample of 85 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 85 students is $ 24,500 or less?

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