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 11 nursing students from Group 1 resulted in a mean score of 41.3 with a standard deviation of 6.8. A random sample of 14 nursing students from Group 2 resulted in a mean score of 54.8 with a standard deviation of 6. Can you conclude that the mean score for Group 1 is significantly lower than the mean score for Group 2? Let µj represent the mean score for Group 1 and µ2 represent the mean score for Group 2. Use a significance level of a = 0.1 for the test. Assume that the population variances are equal and that the two populations are normally distributed.
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 11 nursing students from Group 1 resulted in a mean score of 41.3 with a standard deviation of 6.8. A random sample of 14 nursing students from Group 2 resulted in a mean score of 54.8 with a standard deviation of 6. Can you conclude that the mean score for Group 1 is significantly lower than the mean score for Group 2? Let µj represent the mean score for Group 1 and µ2 represent the mean score for Group 2. Use a significance level of a = 0.1 for the test. Assume that the population variances are equal and that the two populations are normally distributed.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Step 1 of 4: State the null and alternative hypotheses for the test.
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
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