You wish to test the following claim (Ha) at a significance level of a = 0.01. Ho: 12 Ha: 1 > 2 = You obtain a sample of size ni 13 with a mean of ₁ = 77.1 and a standard deviation of 81 = 7.7 from the first population. You obtain a sample of size n₂ = 9 with a mean of 272.4 and a standard deviation of 82= 5.4 from the second population. Find a confidence interval for the difference of the population means. For this calculation, use the conservative under-estimate for the degrees of freedom as mentioned in the textbook. (Report answer accurate to three decimal places.) confidence interval= The test statistic is... the confidence interval contains zero all values in the confidence interval are below zero all values in the confidence interval are above zero This test statistic leads to a decision to.... reject the null accept the null fail to reject the null

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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You wish to test the following claim (Ha) at a significance level of a = 0.01.
Ho: 12
Ha: 1 > 2
You obtain a sample of size n₁ = 13 with a mean of 1 = 77.1 and a standard deviation of
$17.7 from the first population. You obtain a sample of size n2 = 9 with a mean of
T2 = 72.4 and a standard deviation of s2 = 5.4 from the second population.
Find a confidence interval for the difference of the population means. For this calculation,
use the conservative under-estimate for the degrees of freedom as mentioned in the
textbook. (Report answer accurate to three decimal places.)
confidence interval=
The test statistic is...
the confidence interval contains zero
all values in the confidence interval are below zero
all values in the confidence interval are above zero
This test statistic leads to a decision to...
reject the null
accept the null
fail to reject the null
Transcribed Image Text:You wish to test the following claim (Ha) at a significance level of a = 0.01. Ho: 12 Ha: 1 > 2 You obtain a sample of size n₁ = 13 with a mean of 1 = 77.1 and a standard deviation of $17.7 from the first population. You obtain a sample of size n2 = 9 with a mean of T2 = 72.4 and a standard deviation of s2 = 5.4 from the second population. Find a confidence interval for the difference of the population means. For this calculation, use the conservative under-estimate for the degrees of freedom as mentioned in the textbook. (Report answer accurate to three decimal places.) confidence interval= The test statistic is... the confidence interval contains zero all values in the confidence interval are below zero all values in the confidence interval are above zero This test statistic leads to a decision to... reject the null accept the null fail to reject the null
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