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A random sample of n = 16 mid-sized cars tested for fuel consumption gave a mean of x = 20.01 miles per gallon with a standard deviation of s = 2.84 miles per gallon. Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the population mean,

A random sample of n = 16 mid-sized cars tested for fuel consumption gave a mean of x = 20.01 miles per gallon with a standard deviation of s = 2.84 miles per gallon. Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the population mean,

MATLAB: An Introduction with Applications
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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A random sample of n = 16 mid-sized cars tested for fuel consumption gave a mean of x = 20.01 miles per gallon with a standard deviation of s = 2.84 miles per gallon. Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the population mean, H. Round your answers to two decimal places. i i Save for Later
Transcribed Image Text:A random sample of n = 16 mid-sized cars tested for fuel consumption gave a mean of x = 20.01 miles per gallon with a standard deviation of s = 2.84 miles per gallon. Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the population mean, H. Round your answers to two decimal places. i i Save for Later
Almost all employees working for financial companies in New York City receive large bonuses at the end of the year. A sample of 63 employees selected from financial companies in New York City showed that they received an average bonus of $46,000 last year with a standard deviation of $21,000. Construct a 95% confidence interval for the average bonus that all employees working for financial companies in New York City received last year. Round your answers to cents. i to $ %24
Transcribed Image Text:Almost all employees working for financial companies in New York City receive large bonuses at the end of the year. A sample of 63 employees selected from financial companies in New York City showed that they received an average bonus of $46,000 last year with a standard deviation of $21,000. Construct a 95% confidence interval for the average bonus that all employees working for financial companies in New York City received last year. Round your answers to cents. i to $ %24
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