Answered: 7.22 A final one-sample t test. The one… | bartleby

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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**7.22 A Final One-Sample t Test**

The one-sample t statistic for testing

\[
H_0: \mu = 20
\]
\[
H_a: \mu < 20
\]

based on \( n = 9 \) observations has the value \( t = -1.85 \).

(a) What are the degrees of freedom for this statistic?

(b) Between what two values does the P-value of the test fall?

(c) If you have software available, find the exact P-value.

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1:37 You wish to test the following claim (Ha) at a significance level of a = 0.01. Ho:p = 0.7 Ha:p + 0.7 You obtain a sample of size n = 356 in which there are 261 successful observations. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to three decimal places.) p-value = The p-value is... O less than (or equal to) a greater than a This test statistic leads to a decision to... O reject the null O accept the null fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.7. O There is not sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.7. O The sample data support the claim that the population proportion is not equal to 0.7. O There is not sufficient sample evidence to support the claim that…
help me find test statistics, critical values and rejection region

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