Day Care Tuition A random sample of 53 four-year-olds attending day care centers provided a yearly tuition average of $3955 and the population standard deviation of $626 Part 1 of 2 Find the 91% confidence interval of the true mean. Round your answers to the nearest whole number.

Day Care Tuition A random sample of 53 four-year-olds attending day care centers provided a yearly tuition average of $3955 and the population standard deviation of $626 Part 1 of 2 Find the 91% confidence interval of the true mean. Round your answers to the nearest whole number.

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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Question

Day Care Tuition A random sample of

four-year-olds attending day care centers provided a yearly tuition average of

$3955

and the population standard deviation of

$626

Part 1 of 2

Find the

91%

confidence interval of the true mean. Round your answers to the nearest whole number.

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Salaries of 25 college graduates who took a statistics course in college have a mean of $79,350 and a standard deviation of $1,280. Construct a 98% confidence interval for estimating the population standard deviation. Enter the upper bound of the confidence interval. (Round your answer to nearest whole dollar.)
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