1.Use Master Data File and SPSS. Test if NAs who received a flu shot in the past year (FLUSHOT) have a statistically different mean hours worked per week (NHHOURS) than NAs who did not receive a flu shot.
What are the results of the two tailed t-test?
a. NAs who received a flu shot in the past year (FLUSHOT) have nearly the same mean hours worked per week (NHHOURS) than NAs who did receive a flu shot. The difference is not statistically significant.
b. NAs who received a flu shot in the past year (FLUSHOT) have significantly different mean hours worked per week (NHHOURS) than NAs who did receive a flu shot. The difference is statistically significant.
c. NAs who received a flu shot in the past year (FLUSHOT) have exactly the same mean hours worked per week (NHHOURS) as NAs who did not receive a flu shot.
d. This t-test cannot be performed because none of the variables is continuous. A mean can only be computed for an interval or ratio variable.
SPSS Statistics File View Data Transform Insert Format Analyze Graphs Utilities Extensions Window Help 10 8 42 2 9 8 2 Fri Jul 30 4:22 PM Output1 [Document 1] - IBM SPSS Statistics Viewer F ......... ......... EEC + Output Job security Pearson Correlation 1 .007 LA Log Correlations Sig. (2-tailed) 700 Title N 2897 2894 Notes Calculated TOTAL Pearson Correlation .007 Active Dataset minutes of commute to 700 Correlations work Sig. (2-tailed) N 2894 2894 A Log Correlations Title CORRELATIONS Notes /VARIABLES=NHPAIDHR NHRATEHR Descriptive Statistics /PRINT=TWOTAIL NOSIG Correlations STATISTICS DESCRIPTIVES A Log /MISSING=PAIRWISE. Means Title Notes Correlations Case Processing Sum Report Log Descriptive Statistics Means Std. Title Mean Deviation N Notes Case Processing Sum Is NA paid by the hour 1.08 359 3017 Report Hourly rate of pay 9.6644 2.03007 2754 Log Correlations Title Correlations Notes Is NA paid Hourly rate Descriptive Statistics by the hour of pay Correlations Log Is NA paid by the hour Pearson Correlation Correlations Sig. (2-tailed) 000 Title N 3017 2754 Notes L Descriptive Statistics Hourly rate of pay Pearson Correlation Correlation Sig. (2-tailed) 000 N 2754 2754 a. Cannot be computed because at least one of the variables is constant. IBM SPSS Statistics Processor is ready Unicode:ON OIS 373 JUL 30SPSS Statistics File View Data Transform Insert Format Analyze Graphs Utilities Extensions Window Help 10 8 42 2 9 8 8 Fri Jul 30 4:05 PM Output1 [Document 1] - IBM SPSS Statistics Viewer ........... ....... + Output Did NA receive a flu Std. LA Log shot in past year Mean N Deviation Correlations 1.31 1052 .664 Title IN 1.33 1821 .630 Notes Active Dataset 1.00 00 V La Correlations 1.89 9 2.315 Log 1.07 14 267 Correlations Total 1.32 2897 .653 Title LE Notes Descriptive Statistics MEANS TABLES=NHHOURS BY FLUSHOT Correlations /CELLS=MEAN COUNT STDDEV. Means Title Means Notes Case Processing Summa Report Case Processing Summary Log Cases Means Title Included Excluded Total Notes N Percent N Percent N Percent Case Processing Summa Hours usually worked 3007 99.7% 10 0.3% 3017 100.0% Report per week * Did NA receive a flu shot in pasty Report Hours usually worked per week Did NA receive a flu Std. shot in past year Mean N Deviation 36.52 .088 8.443 2 36.33 896 8.365 8 35.11 5.555 35.07 14 7.570 Total 36.39 3007 3.381 IBM SPSS Statistics Processor is ready Unicode:ON JUL 30SPSS Statistics File View Data Transform Insert Format Analyze Graphs Utilities Extensions Window Help 10 8 42 2 9 8 2 Fri Jul 30 4:14 PM Output1 [Document 1] - IBM SPSS Statistics Viewer ........" ........... .......... .......... + Output 36.33 189 8.365 LA Log OO N 35.11 5.555 Correlations Title 9 35.07 14 7.570 Notes Total 36.39 3007 8.381 Active Dataset La Correlations Log CORRELATIONS Correlations "VARIABLES=JOBSECUR WAY2WORK_MIN Title /PRINT=TWOTAIL NOSIG LE Notes STATISTICS DESCRIPTIVES Descriptive Statistics /MISSING=PAIRWISE. Correlations Means Correlations Title Notes Descriptive Statistics Case Processing Summa Report Std . Mean Deviation N Log Means Job security 1.32 653 2897 Title Calculated TOTAL 18.2719 15.42509 2894 Notes minutes of commute to Case Processing Summa work Report Log Correlations Correlations Title Calculated Notes TOTAL Descriptive Statistics minutes of * Correlations commute to Job security work Job security Pearson Correlation 007 Sig. (2-tailed) 700 N 2897 2894 Calculated TOTAL Pearson Correlation .007 minutes of commute to work Sig. (2-tailed) 700 N 2894 2894 IBM SPSS Statistics Processor is ready Unicode:ON JUL 30
