endent populations have unknown but equal variances. We randomly select 32 items from each of population A and population B. Given H1 : HA UB < 0 and an observed value of the test statistic equal to -1.85, what would we conclude at the 5% significance level? Reject the null. The evidence supports a claim that population B's mean exceeds population A's mean. Reject the null. The evidence does not support a claim that population B's mean exceeds population A's mean. Do not reject the null. The evidence does not support a claim that population A's mean exceeds population B's mean. Do not reject the null. The evidence does not support a claim the population B's mean exceeds population A's mean

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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39

Two independent populations have unknown but equal variances. We randomly
select 32 items from each of population A and population B. Given
Hị: µA - µB < 0 and an observed value of the test statistic equal to
-1.85, what would we conclude at the 5% significance level?
Reject the null. The evidence supports a claim that population B's mean exceeds
population A's mean.
Reject the null. The evidence does not support a claim that population B's mean
exceeds population A's mean.
Do not reject the null. The evidence does not support a claim that population A's
mean exceeds population B's mean.
Do not reject the null. The evidence does not support a claim the population B's
mean exceeds population A's mean
Transcribed Image Text:Two independent populations have unknown but equal variances. We randomly select 32 items from each of population A and population B. Given Hị: µA - µB < 0 and an observed value of the test statistic equal to -1.85, what would we conclude at the 5% significance level? Reject the null. The evidence supports a claim that population B's mean exceeds population A's mean. Reject the null. The evidence does not support a claim that population B's mean exceeds population A's mean. Do not reject the null. The evidence does not support a claim that population A's mean exceeds population B's mean. Do not reject the null. The evidence does not support a claim the population B's mean exceeds population A's mean
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