Calculating and interpreting t test statistic:(a) Let u = 78. A sample of size 26 provided asample mean x = 77.8 and a sample standarddeviation s = 2. Find P (x < 77.8).(b) Assume researchers regard a probabilitysmaller than 5% small. Since P(x < 77.8) isthan 5%, it isto haveobtained such a sample mean. In other words,provided the population mean of 78, a samplemean this close to the population mean ishighly likely to occur by pure chance alone. Toput it in another way, the fact that this samplemean of 77.8 occurredcast doubt onthe validity of the assumption of 77.8.a. smaller, surprising, doesb. smaller, not surprising, does notc. larger, surprising, doesd. larger, not surprising, does not

The formula for t test statistic is, t=x¯-μsnn is sample sizes is sample standard deviationμ is…

Calculating and interpreting t test statistic: (a) Let µ = 78. A sample of size 26 provided a sample mean x = 77.8 and a sample standard deviation s = 2. Find P (x < 77.8). (b) Assume researchers regard a probability smaller than 5% small. Since P (x < 77.8) is than 5%, it is to have obtained such a sample mean In other words

Calculating and interpreting t test statistic: (a) Let µ = 78. A sample of size 26 provided a sample mean x = 77.8 and a sample standard deviation s = 2. Find P (x < 77.8). (b) Assume researchers regard a probability smaller than 5% small. Since P (x < 77.8) is than 5%, it is to have obtained such a sample mean In other words

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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