Consider the following data from two independent groups: Liberals: 4, 1, 4, 2 &nb

Consider the following data from two independent groups:

Liberals: 4, 1, 4, 2 Conservatives: 5, 1, 3, 3, 4

Calculate the t statistic

Calculate the 95% confidence interval.

Calculate Cohen’s d.

Solutions

Expert Solution

The above problem is solved using R software, the output is attached below.

T statistics = -0.45088

95% CI =(-2.814202, 1.914202)

Cohones D = -0.7988133

Dear student,
I am waiting for your feedback. I have given my 100% to solve your queries. If you satisfied with my answer then please please like this.
Thank You

orchestra answered 11 months ago

Next > < Previous

Related Solutions

Consider the following data from two independent groups: Liberals: 2, 1, 3, 2 Conservatives: 4,3,3,5,2,4 Calculate...

Consider the following data from two independent groups: Liberals: 2, 1, 3, 2 Conservatives: 4,3,3,5,2,4 Calculate s2 for each group Calculate dfx, dfy, and dftotal Determine the critical values for t, assuming a two-tailed test with a p level of .05 Calculate pooled variance, s2pooled Calculate the variance version of standard error for each group Calculate the variance and the standard deviation of the distribution of the differences between means Calculate the t statistic

Consider the following data for two independent random samples taken from two normal populations. Sample 1...

Consider the following data for two independent random samples taken from two normal populations. Sample 1 11 6 13 7 9 8 Sample 2 8 7 9 4 5 9 (a) Compute the two sample means. Sample 1Sample 2 (b) Compute the two sample standard deviations. (Round your answers to two decimal places.) Sample 1Sample 2 (c) What is the point estimate of the difference between the two population means? (Use Sample 1 − Sample 2.) (d) What is the...

5. Consider the following data from an independent measures study: Treatment 1 Treatment 2 n...

5. Consider the following data from an independent measures study: Treatment 1 Treatment 2 n = 4 n = 4 mean = 4 mean = 11 SS = 96 SS = 100 Is there a evidence for a treatment effect? (α = .05, two tails). 6. A sample of n = 16 difference scores from a repeated measures experiment has SS = 440. The average difference score is 3. For a two-tailed test, α = .05, is this a...

1. Consider the following results for independent samples taken from two populations. Sample 1 Sample 2...

1. Consider the following results for independent samples taken from two populations. Sample 1 Sample 2 n1 = 500 n2= 200 p1= 0.45 p2= 0.34 a. What is the point estimate of the difference between the two population proportions (to 2 decimals)? b. Develop a 90% confidence interval for the difference between the two population proportions (to 4 decimals). Use z-table. to c. Develop a 95% confidence interval for the difference between the two population proportions (to 4 decimals). Use...

The table below represents data on a variable of interest collected from two independent groups, in...

The table below represents data on a variable of interest collected from two independent groups, in which each group was randomly assigned 10 participants. A researcher is interested in testing whether the two groups have different means. Group 1 = 4, 4, 2, 6, 3, 5, 6, 1, 5, 4 Group 2 = 6, 10, 4, 7, 8, 5, 9, 10, 6, 7 Please bold answers and show work a) What are the appropriate hypothesis for this analysis? b) What...

Consider the following data for two independent random samples taken from two normal populations with equal...

Consider the following data for two independent random samples taken from two normal populations with equal variances. Find the 95% confidence interval for µ1 - µ2. Sample 1: 11,5,12,9,6,8 Sample 2: 12,9,16,13,11,11 What are the left adn right endpoints?

Consider the following data for two independent (not matched) random samples taken from two normal populations....

Consider the following data for two independent (not matched) random samples taken from two normal populations. Sample 1 10 7 13 7 9 8 Sample 2 8 7 8 4 6 9 In the next question you will be asked to develop a confidence interval for the difference between the two population means.

Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2...

Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2 n1= 10 n2 = 40 x1= 22.3 x2= 20.3 s1= 2.5 s2 = 4.1 a. What is the point estimate of the difference between the two population means (to 1 decimal)? b. What is the degrees of freedom for the t distribution (round down)? c. At 95% confidence, what is the margin of error (to 1 decimal)? d. What is the 95% confidence...

Consider the following results for independent samples taken from two populations. Sample 1 Sample 2 n1...

Consider the following results for independent samples taken from two populations. Sample 1 Sample 2 n1 = 400 n2= 300 p1= 0.49 p2= 0.38 Develop a 90% confidence interval for the difference between the two population proportions (to 4 decimals). Use z-table. ___ to ___ c. Develop a 95% confidence interval for the difference between the two population proportions (to 4 decimals). Use z-table. ___ to ___

Consider the following results for independent samples taken from two populations. Sample 1 Sample 2 n1...

Consider the following results for independent samples taken from two populations. Sample 1 Sample 2 n1 = 500 n2= 200 p1= 0.42 p2= 0.31 a. What is the point estimate of the difference between the two population proportions (to 2 decimals)? b. Develop a 90% confidence interval for the difference between the two population proportions (to 4 decimals). Use z-table. to c. Develop a 95% confidence interval for the difference between the two population proportions (to 4 decimals). Use z-table....

Subjects