Employees at a regional hospital spend an average of $7 per day on lunch, with a standard deviation $4. A simple random sample of 100 employees is studied.(a) What is the expected value of the sampling distribution of the sample mean?$What is the standard deviation of the sampling distribution of the sample mean? (Round your answer to the nearest cent.)$What is the shape of the sampling distribution of the sample mean?O exponentialskewed to the rightO normalO skewed to the leftO uniform(b) What is the probability that the sample mean will be at least $6.10? (Round your answer to four decimal places.)(c) What is the probability that the sample mean will be at least $7.60? (Round your answer to four decimal places.)

Populatin mean, Population standard deviation, Sample size,

Answered: Employees at a regional hospital spend…

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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