The average salary of 64 employee was 5400. Using historicaldata, we will assume that the population standard deviationis 280. Find the 90% confidence interval for the populationmean salary.Select one:O a. 5400 ±51.41O b. 5400 55.52O c. 5400 + 53.46O d. 5400 + 57.58

Given; Number of employee = 64 Average salary=5400 Standard deviation = 280.

Answered: The average salary of 64 employee was…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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The average salary of 64 employee was 5400. Using historical data, we will assume that the population standard deviation is 280. Find the 90% confidence interval for the population mean salary. Select one: O a. 5400 ± 51.41 O b. 5400 55.52 O c. 5400 ± 53.46 O d. 5400 + 57.58