Question

f a 90% confidence interval for the difference in the two population means contains zero, then the null hypothesis of zero difference between the two population means cannot be rejected at a 0.10 level of significance. true false

Answer 1

True , the null hypothesis of zero difference between the two population means cannot be rejected at a 0.10 level of significance.

Given :

f a 90% confidence interval for the difference in the two population means contains zero, then the null hypothesis of zero difference between the two population means cannot be rejected at a 0.10 level of significance.

at 10 % significance:

z score = 1.282

at 90 % confidence interval :

z score = 1.645

$H_0 :$ differences between population mean = 1.282

so true the null hypothesis of zero difference between the two population means cannot be rejected at a 0.10 level of significance.

Learn more about the null hypothesis here:

brainly.com/question/28920252

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