Question

The Human Resources Director for a large company is studying absenteeism among hourly workers. A sample of 120 day shift employees showed 15 were absent more than five days last year. A sample of 80 afternoon employees showed 18 to be absent five or more times. At the 0.01 significance level can we conclude that there is a higher proportion of absenteeism among afternoon employees?

1. State the Null and Alternate Hypothesis(H0, H1).

2. Determine the level of significance.

3. Determine the test statistic. (z or t)

4. State the decision rule.(Reject H0 if)

5. Conduct the test and make a decision.(Include Formula and show all work)

6. Interpret the results.

"PLEASE SHOW ALL WORK WITH THE CORRECT ANSWERS"

Thanks!

Answer #1

A study of unexcused absenteeism among factory workers looked at
a year's records for 150 workers in a factory LA County. The mean
number of days absent for the sample was 9.5 and the population
standard deviation was 2.2 days. Regard these workers in this year
as a random sample of all workers in all years as long as this
factory does not change work conditions or worker benefits. The
study claimed that the average number of days employees were...

Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism that he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in...

Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism, which he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in...

Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism, which he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in...

Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism, which he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in...

Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism that he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in...

Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism that he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in...

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