sample days and finds a sample average for the number of rther analysis of the data, it appears reasonable to assume the popu -test statistic is calculated to test whether the true population mean rhat is the approximate p-value of this test? 0.0125 < p<0.025 0.025

sample days and finds a sample average for the number of rther analysis of the data, it appears reasonable to assume the popu -test statistic is calculated to test whether the true population mean rhat is the approximate p-value of this test? 0.0125 < p<0.025 0.025

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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6. A popular website claims to receive an average of 4,500 unique visitors a day. A interested advertiser takes
a random sample of 20 days and finds a sample average for the number of unique visitors in a day. Based
on a further analysis of the data, it appears reasonable to assume the population is approximately normal
and a t-test statistic is calculated to test whether the true population mean is 4,500. If the t-test statistic is-
1.67, what is the approximate p-value of this test?
a) 0.0125 < p <0.025
b) 0.025 <p<0.05
c) 0.05 <p<0.1
d) 0.1<p<0.2
e) The approximate p-value cannot be determined without the sample mean.

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