1. You are conducting a one-sample mean t-test. Sample size = 33. How many degrees of...

1. You are conducting a one-sample mean t-test. Sample size = 33. How many degrees of freedom (df) would you need when using the t-table?

2. For your sample, n = 25. You are running a two-tailed test and your alpha level (α) is 0.10. Using a t-table from your book or online with Canvas, what would be your critical value?

3. For your sample, n = 5. You are running a one-tailed test and your alpha level (α) is 0.01. Using a t-table from your book or online with Canvas, what would be your critical value?

4. You are conducting a two-tailed test. Below are the calculated test statistic and the appropriate critical value. What decision would you make based on the following data? test statistic = 1.963; critical value = 1.697.

5. You are conducting a two-tailed test. Below are the calculated test statistic and the appropriate critical value. What decision would you make based on the following data? test statistic = 1.384; critical value = 1.697.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

A sample mean, sample standard deviation, and sample size are given. Use the one mean t-test...

A sample mean, sample standard deviation, and sample size are given. Use the one mean t-test to perform the required hypothesis test about the mean M of the population from which the sample was drawn. Use the P- value approach. Also asses the strength of the evidence against the null hypothesis. Mean of the sample= 226,450 ; S= 11,500 ; n= 23 ; mean of the population = 220, 000 ; Ha : M>220,000 ; alpha = 0.01 . 2)....

A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test...

A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test to perform the required hypothesis test at the 1% significance level. x=29, s=6, n=15, H0: μ=27, Ha: μ≠27 The test statistic is t=_______ (Round to two decimal places as needed.) The P-value is ______ (Round to three decimal places as needed.) ▼ ______ the null hypothesis. The data _____ sufficient evidence to conclude that the mean is ______ ▼

You are performing a right-tailed t-test with a sample size of 33 If α=.025 , find...

You are performing a right-tailed t-test with a sample size of 33 If α=.025 , find the critical value, to two decimal places.

The one-sample z-test and the one-sample t-test both test if a sample mean is representative of...

The one-sample z-test and the one-sample t-test both test if a sample mean is representative of a population. What is the difference between these two tests?

1.If you have small sample size, you can conduct one-sample t-test when ______. the population distribution...

1.If you have small sample size, you can conduct one-sample t-test when ______. the population distribution is normal the sample mean is unknown the sample mean is closer to the population mean the sample standard deviation is sufficiently large 13.Which research question below is appropriate for a related-samples t test? to compare the level of honesty (based on an honesty scale) in politicians to the level of honesty in students to compare the level of sat scores at the beginning...

Imagine that a researcher is conducting a paired-samples t test. She finds that the sample mean...

Imagine that a researcher is conducting a paired-samples t test. She finds that the sample mean difference is 3.665, the standard deviation of the difference scores is 9.334, and the sample size is 75. The researcher is also using a typical null hypothesis that proposes no differences between the relevant population means. Under these circumstances, what is the value of Cohen's d? Please retain a minimum of three decimal places for all steps (if relevant) and provide a minimum of...

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 33 46.8...

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 33 46.8 41.8 33.4 39.5 33 44.5 34 Find the 99% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). 99% C.I. =

indicate the formulas for finding the degrees of freedom for: One-sample t-test Two independent-samples t-test Paired-samples...

indicate the formulas for finding the degrees of freedom for: One-sample t-test Two independent-samples t-test Paired-samples t-test

Consider a two-sample t-test. Why is the sign of the t-test arbitrary? . Why are the degrees...

Consider a two-sample t-test. Why is the sign of the t-test arbitrary? . Why are the degrees of freedom associated with the dependent groups t-test always smaller than the degrees of freedom for the independent groups t-test? Be sure to illustrate the calculation of each type of df. Describe how one would test the homogeneity of variance in a two-sample t-test. How is this information used in your hypothesis testing? How would you go about using a confidence interval to illustrate...

In which of the following scenarios will conducting a two-sample t t -test for means be...

In which of the following scenarios will conducting a two-sample t t -test for means be appropriate? CHECK ALL THAT APPLY. A. To test if there is a difference between the mean annual income of husbands and that of wives in Canada. B. To test if the mean annual income of Ontarians is higher than that of British Columbians. C. To test if there is a difference between the mean annual income of male British Columbians and that of female...

Subjects