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Please solve all four sun parts

Please solve all four sun parts

A First Course in Probability (10th Edition)
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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Please solve all four sun parts
After deducting grants besed on need, the average.cost to attend the University of Southem California (USC) is $26,100. Assume the population standard deviation is $7,100 Suppone that a random sample of 80 uSC students will be taken from this population. Use a-table. a. What is the value of the standerd error of the mean? (to nearest whole number) b. What is the probability that the semple mean will be more than $26,1007 (to 2 decimals) c. What is the probability th emple mean will be within $1,250 of the population mean? (to 4 decimals) d. How would abability in part (c) change if the sample size were increased to 1107 (to 4 decimels)
Transcribed Image Text:After deducting grants besed on need, the average.cost to attend the University of Southem California (USC) is $26,100. Assume the population standard deviation is $7,100 Suppone that a random sample of 80 uSC students will be taken from this population. Use a-table. a. What is the value of the standerd error of the mean? (to nearest whole number) b. What is the probability that the semple mean will be more than $26,1007 (to 2 decimals) c. What is the probability th emple mean will be within $1,250 of the population mean? (to 4 decimals) d. How would abability in part (c) change if the sample size were increased to 1107 (to 4 decimels)
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