SHORT ANSWER: Why do we divide by the standard error when computing a test statistic?

Expert Solution

orchestra answered 2 years ago

3. What does the test statistic tell us? 4. Why do we divide by the standard...

3. What does the test statistic tell us? 4. Why do we divide by the standard error when computing a test statistic? 5. Why do we reject the null hypothesis when the p-value is small? Explain as if to someone unfamiliar with statistics.

T statistic Why do we use the t statistic? What is standard error? What’s the difference...

T statistic Why do we use the t statistic? What is standard error? What’s the difference between a one-sample t-test, an independent measures t test, and a repeated measures t-test? Walk through the 5 steps of hypothesis testing using a one-sample t-test. What are the assumptions of the t test? One-way ANOVA There are two sources of variation. What are they? Why do we care about them? Why do we use ANOVA? In other words, why don’t we just use...

Why in the formalism of the standard deviation of the population we divide by n and...

Why in the formalism of the standard deviation of the population we divide by n and for the standard deviation of the sample we divide by n-1?

What test statistic would we use when comparing two population proportions? What test statistic would we...

What test statistic would we use when comparing two population proportions? What test statistic would we use when comparing observed vs. expected frequencies? If my degrees of freedom were 7 and I am comparing observed and expected frequencies at a 0.01 level of significance. What would my critical value be?

) Explain when you will use the test statistic and when you will use the test statistic...

) Explain when you will use the test statistic and when you will use the test statistic . 2) Explain why using the smaller of n1 − 1 or n2 − 1 degrees of freedom to determine the critical t instead of is more precautious. 3) you learned how to test hypotheses regarding two sample proportions. Explain when you will use the test statistic and when you will use the test statistic .

a.) Why do cells divide or why do cells need to divide? b.) The differences in...

a.) Why do cells divide or why do cells need to divide? b.) The differences in cell division process(es) between prokaryotic and eukaryotic organisms. Be sure to provide details of the differences in a logical manner.

In a multiple linear regression how do we calculate the standard error of B2 ( we...

In a multiple linear regression how do we calculate the standard error of B2 ( we have two independent variables and a constant so we have B0 B1 and B2) how do we calculate the standard error of the three.

Short answer please. 1 Why do businesses use normal costing? 2. Why do we have to...

Short answer please. 1 Why do businesses use normal costing? 2. Why do we have to assess WIP differently for Job and Process Cost?

Why are we justified in pooling the population proportion estimates and the standard error of the...

Why are we justified in pooling the population proportion estimates and the standard error of the differences between these estimates when we conduct significance tests about the difference between population proportions?

1. If the test statistic (the calculated F ratio) is 10 and the error variance is...

1. If the test statistic (the calculated F ratio) is 10 and the error variance is 5, what is the treatment variance? 2. If the treatment Sum of Squares is 400, and k=5, what is the treatment variance? 3. What is the table value for F(11,46) when alpha = .05? 4. What is the lowest possible value for the F statistic? 5. The following table shows the results of an analysis of variance comparing three treatment conditions with a sample...

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