To this point, the work of days missed per month by workers at a large corporation has average 2.25. A new flexible workday arrangement has been introduced and it is hoped that by introducing this "flex time" that the average workdays miss per month will be reduced. Let alpha=.05 A) Define the appropriate parameter for this problem and then set up the appropriate Null and alternative hypothesis a. The average number of work days missed by all the workers at a large corporation. Ho: x bar= 2.25; Ha: x bar < 2.25 b. the Average number of work days missed by all workers at a
To this point, the work of days missed per month by workers at a large corporation has average 2.25. A new flexible workday arrangement has been introduced and it is hoped that by introducing this "flex time" that the average workdays miss per month will be reduced. Let alpha=.05
A) Define the appropriate parameter for this problem and then set up the appropriate Null and alternative hypothesis
a. The average number of work days missed by all the workers at a large corporation. Ho: x bar= 2.25; Ha: x bar < 2.25
b. the Average number of work days missed by all workers at a large corporation Ho: mu =2.25; Ha: mu < 2.25
c. Number of workdays mess by the workers
d. The average number of workdays mess by the 20 workers at a large corporation Ho: mu =2.25 ; Ha: mu> 2.25
B) Flex time is tried out with a sample of 20 workers. The average number of days missed in the next month is 1.83 with a standard deviation of 0.71. Make any necessary assumptions and use the data to (a) calculate the test statistic (b). give the P-value and your conclusion as to whether or not the flextime program appears to reduce absences.
Test statistic (using 3 decimal places)=
P-value:
a. .0041
b. .05
c. .050<p-value<.100
d. .005<p-value<.010
Decision and conclusion:
a. Fail to reject HO, we have sufficient evidence to conclude the flex time program reduces absences
b. Reject HO, we do not have sufficient evidence to conclude the flex time program reduces absences
c. Fail to reject HO, we do not have sufficient evidence to conclude the flex time program reduces absences
d. Reject HO, we have sufficient evidence to conclude the flex time program reduces absences
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