Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $132,000. Assume the standard deviation is $31,000. Suppose you take a simple random sample of 17 graduates. Round all answers to four decimal places if necessary.What is the distribution of XX? XX ~ N(,)What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)For a single randomly selected graduate, find the probability that her salary is between $130,022 and $140,381. For a simple random sample of 17 graduates, find the probability that the average salary is between $130,022 and $140,381. For part d), is the assumption of normal necessary? NoYes

According to guidelines we solve first three subparts when given multiple subparts.

Answered: is the distribution of XX? XX ~ N(,)…

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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Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $132,000. Assume the standard deviation is $31,000. Suppose you take a simple random sample of 17 graduates. Round all answers to four decimal places if necessary.

What is the distribution of XX? XX ~ N(,)
What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
For a single randomly selected graduate, find the probability that her salary is between $130,022 and $140,381.
For a simple random sample of 17 graduates, find the probability that the average salary is between $130,022 and $140,381.
For part d), is the assumption of normal necessary? NoYes

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