Topic: Interval Estimate of Sample Mean Answer number 1 and 2. 1. A recent study of 25 motorists showed that they spent an average of P750 perweek. The standard deviation of sample was P90. Find the 99% confidenceinterval of the true mean.2. A recent survey conducted by the National Telecommunication Commission (NTC)aims to determine the average internet usage using smartphones (in minutes) perweek. The researcher who surveyed 28 randomly selected people and found thatthe average time of internet usage using their smartphones per week is 140minutes with a standard deviation of 30 minutes. Estimate a 95% confidenceinterval of the average time per minute.

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Description: Topic: Interval Estimate of Sample Mean Answer number 1 and 2. 1. A recent study of 25 motorists showed that they spent an average of P750 perweek. The standard deviation of sample was P90. Find the 99% confidenceinterval of the true mean.2. A recent

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Math

Statistics

1. A recent study of 25 motorists showed that they spent an average of P750 per week. The standard deviation of sample was P90. Find the 99% confidence interval of the true mean.

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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