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A study was designed to compare the attitudes of two groups of nursing students toward computers. Group 1 had previously taken a statistical methods course that involved significant computer interaction through the use of statistical packages. Group 2 had taken a statistical methods course that did not use computers. The students' attitudes were measured by administering the Computer Anxiety Index (CAIN). Assume that the population variances of the scores of the two groups are same. The results of the scores were as follows: Group 1 (with computers): n =10 X = 60.3 S =7.5 Group 2 (without computers): n, =15 X, =64.2 S2 =5.1 a. Define the two parameters in the words of the problem. b. Use a 90% confidence interval to estimate the difference between the mean Computer Anxiety Index scores of the two groups. c. Interpret the interval found in part b. d. Do the data show that the mean score for those with computer experience was

A study was designed to compare the attitudes of two groups of nursing students toward computers. Group 1 had previously taken a statistical methods course that involved significant computer interaction through the use of statistical packages. Group 2 had taken a statistical methods course that did not use computers. The students' attitudes were measured by administering the Computer Anxiety Index (CAIN). Assume that the population variances of the scores of the two groups are same. The results of the scores were as follows: Group 1 (with computers): n =10 X = 60.3 S =7.5 Group 2 (without computers): n, =15 X, =64.2 S2 =5.1 a. Define the two parameters in the words of the problem. b. Use a 90% confidence interval to estimate the difference between the mean Computer Anxiety Index scores of the two groups. c. Interpret the interval found in part b. d. Do the data show that the mean score for those with computer experience was

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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d. Do the data show that the mean score for those with computer experience was significantly less than the mean score for those without computer experience? Us a=0.05. (i) State the null and alternative hypotheses, (ii) Calculate the value of the test statistic (iii) Rejection region: (iv) Conclusion: (vi) What assumption are necessary for the test in part d to be valid?
Transcribed Image Text:d. Do the data show that the mean score for those with computer experience was significantly less than the mean score for those without computer experience? Us a=0.05. (i) State the null and alternative hypotheses, (ii) Calculate the value of the test statistic (iii) Rejection region: (iv) Conclusion: (vi) What assumption are necessary for the test in part d to be valid?
A study was designed to compare the attitudes of two groups of nursing students toward computers. Group 1 had previously taken a statistical methods course that involved significant computer interaction through the use of statistical packages. Group 2 had taken a statistical methods course that did not use computers. The students' attitudes were measured by administering the Computer Anxiety Index (CAIN). Assume that the population variances of the scores of the two groups are same. The results of the scores were as follows: Group 1 (with computers): n, =10 x, =60.3 S1 =7.5 Group 2 (without computers): n2 =15 x, =64.2 S2 =5.1 a. Define the two parameters in the words of the problem. b. Use a 90% confidence interval to estimate the difference between the mean Computer Anxiety Index scores of the two groups. c. Interpret the interval found in part b. d. Do the data show that the mean score for those with computer experience was
Transcribed Image Text:A study was designed to compare the attitudes of two groups of nursing students toward computers. Group 1 had previously taken a statistical methods course that involved significant computer interaction through the use of statistical packages. Group 2 had taken a statistical methods course that did not use computers. The students' attitudes were measured by administering the Computer Anxiety Index (CAIN). Assume that the population variances of the scores of the two groups are same. The results of the scores were as follows: Group 1 (with computers): n, =10 x, =60.3 S1 =7.5 Group 2 (without computers): n2 =15 x, =64.2 S2 =5.1 a. Define the two parameters in the words of the problem. b. Use a 90% confidence interval to estimate the difference between the mean Computer Anxiety Index scores of the two groups. c. Interpret the interval found in part b. d. Do the data show that the mean score for those with computer experience was
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