NURSING EXAM TEST
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
, 1
1. James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the
employee training programs of AFB banks. His staff randomly selected personnel files for 100
tellers in the Southeast Region and determined that their mean training time was 25 hours.
Assume that the population standard deviation is 5 hours. The 95% confidence interval for the
population mean of training times is
24.02 to 25.98
2. 2. If x is a binomial random variable with n=10 and p=0.8, the mean value of x is
8
3. According to the central limit theorem, for samples of size 64 drawn from a population with
µ =800 and σ = 56, the standard deviation of the sampling distribution of sample means
would equal
800
4. Life tests performed on a sample of 13 batteries of a new model indicated: (1) an average life
of75 months, and (2) a standard deviation of 5 months. Other battery models, produced by
similar processes, have normally distributed life spans. The 98% confidence interval for the
population mean life of the new model is
71.28, 78.72
5. A large national company is considering negotiating cellular phone rates for its employees Human
Resource department would like to estimate the proportion of its employee population who own
an Apple iPhone. A random sample of size 250 is taken and 40% of the sample own and iPhone..
The 95% confidence interval to estimate the population proportion is
0.34, 0.46
6. The number of bags arriving on the baggage claim conveyor belt in a 3 minute time period
would best be modeled with the
This study source was downloaded by 100000821441832 from CourseHero.com on 04-08-2021 13:35:35 GMT -05:00
https://www.coursehero.com/file/27397619/QNT-561-Ns-Final-Exam-Guide-New-2017docx/
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
, 1
1. James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the
employee training programs of AFB banks. His staff randomly selected personnel files for 100
tellers in the Southeast Region and determined that their mean training time was 25 hours.
Assume that the population standard deviation is 5 hours. The 95% confidence interval for the
population mean of training times is
24.02 to 25.98
2. 2. If x is a binomial random variable with n=10 and p=0.8, the mean value of x is
8
3. According to the central limit theorem, for samples of size 64 drawn from a population with
µ =800 and σ = 56, the standard deviation of the sampling distribution of sample means
would equal
800
4. Life tests performed on a sample of 13 batteries of a new model indicated: (1) an average life
of75 months, and (2) a standard deviation of 5 months. Other battery models, produced by
similar processes, have normally distributed life spans. The 98% confidence interval for the
population mean life of the new model is
71.28, 78.72
5. A large national company is considering negotiating cellular phone rates for its employees Human
Resource department would like to estimate the proportion of its employee population who own
an Apple iPhone. A random sample of size 250 is taken and 40% of the sample own and iPhone..
The 95% confidence interval to estimate the population proportion is
0.34, 0.46
6. The number of bags arriving on the baggage claim conveyor belt in a 3 minute time period
would best be modeled with the
This study source was downloaded by 100000821441832 from CourseHero.com on 04-08-2021 13:35:35 GMT -05:00
https://www.coursehero.com/file/27397619/QNT-561-Ns-Final-Exam-Guide-New-2017docx/
