2.If a null hypothesis is rejected at a significance level of .05, it will _____

Question

2.If a null hypothesis is rejected at a significance level of .05, it will ______ be rejected at a significance level of .01

3.The internal auditing staff of a local manufacturing company performs a sample audit each quarter to estimate the proportion of accounts that are current (between 0 and 60 days after billing). The historical records show that over the past 8 years 70 percent of the accounts have been current. Determine the sample size needed in order to be 95% confident that the sample proportion of the current customer accounts is within .03 of the true proportion of all current accounts for this company.

4.The slope of the simple linear regression equation represents the average change in the value of the dependent variable per unit change in the dependent variable (Y).

Explanation / Answer

2. If Pvalue is less than alpha we reject the null hypothesis

Now here Pvalue <0.05, which means it will be not necessary less than 0.01. For example if P value is 0.04, so it will be less than 0.05 but not less than 0.01

So If a null hypothesis is rejected at a significance level of .05, it will not necessary be rejected at a significance level of .01

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