Question

10. A study was designed to compare the attitudes of two groups of nursing students towards computers. Group 1 had previously taken a statistical methods course that involved significant computer interaction. Group 2 had taken a statistic methods course that did not use computers. The students' attitudes were measured by administering the Computer Anxiety Rating Scale (CARS). A random sample of 17 nursing students from Group 1 resulted in a mean score of 55.3 with a standard deviation of 6.4. A random sample of 11 nursing students from Group 2 resulted in a mean score of 65.4 with a standard deviation of 2.8. Can you conclude that the mean score for Group 1 is significantly lower than the mean score for Group 2? Let μ1 represent the mean score for Group 1 and μ2 represent the mean score for Group 2. Use a significance level of α=0.01 for the test. Assume that the population variances are equal and that the two populations are normally distributed.

Step 1 of 4: State the null and alternative hypotheses for the test.

Ho: μ1 (=,≠,<,>,≤,≥) μ2

Ha: μ1 (=,≠,<,>,≤,≥) μ2

Step 2 of 4: Compute the value of the t test statistic. Round your answer to three decimal places

Step 3 of 4: Determine the decision rule for rejecting the null hypothesis H0. Round your answer to three decimal places.

Reject Ho if (t, I t I) (<,>) ____

Step 4 of 4: State the test's conclusion.

A. Reject Null Hypothesis

B. Fail to Reject Null Hypothesis

Answer 1