ZuoTi.Pro
Question

A large company states at recruitment fairs the average employee has been with the company for...

A large company states at recruitment fairs the average employee has been with the company for 15 years. The HR department wants to test the claim. They take a random sample of 70 employees and it turns out the average tenure is 14.6 years with a standard deviation of 3.1 years. At α = 0.01 can the company continue to make its claim?

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A large company states at recruitment fairs the average employee has been with the company for...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A researcher wishes to see if the average number of sick days a worker takes per...

    A researcher wishes to see if the average number of sick days a worker takes per year is greater than 2.8. A random sample of 30 workers at a large department store had a mean of 3.1. The standard deviation of the population is 0.8. Is there enough evidence to support the researchers claim at α = 0.01?

  • A random sample of 16 employees at a large company had an average age of 25...

    A random sample of 16 employees at a large company had an average age of 25 years and a standard deviation of 2 years. You have been asked to determine if the average age at the company is significantly different than 24. The test statistic is

  • A professional employee in a large corporation receives an average of m=44.8 e-mails per day. Most...

    A professional employee in a large corporation receives an average of m=44.8 e-mails per day. Most of these e-mails are from other employees in the company. Because of the large number of e-mails, employees find themselves distracted and are unable to concentrate when they return to their tasks. In an effort to reduce distraction caused by such interruptions, one company established a priority list that all employees were to use before sending an e-mail. One month after the new priority...

  • A professional employee in a large corporation receives an average of µ = 41.7 e-mails per...

    A professional employee in a large corporation receives an average of µ = 41.7 e-mails per day. An anti-spam protection program was installed in the company's server and one month later a random sample of 45 employees showed that they were receiving an average of ?̅= 36.2 e-mails per day. Assume that ơ = 18.45. Use a 5% level of significance to test whether there has been a change (either way) in the average number of emails received per day...

  • In the past the average age of employees of a large corporation has been 40 years....

    In the past the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals. In order to determine whether there has been an increase in the average age of all the employees, a sample of 25 employees was selected. The average age in the sample was 42.5 years with a sample standard deviation of 5 years. Using a significance level of α = .01, do the sample data provide support...

  • 1. A researcher believes that the mean age of medical doctors in a large hospital is...

    1. A researcher believes that the mean age of medical doctors in a large hospital is older than the average of doctors in the United States, which is 46. Assume the population standard deviation is 4.2 years. A random sample of 30 doctors from the system is selected, and the mean age of the sample is 48.6. Test the claim at a =0.01. (12 points → 2 points for each step) Show all steps. Step 1: State the question of...

  • CLO'S 6: Setup and sest hy Exercisest In 2011, it has been found that the daily...

    CLO'S 6: Setup and sest hy Exercisest In 2011, it has been found that the daily production workers for of this company is equal to $112. A sample of 90 production workers company revealed a sample mean of S117 per day. Assuming the lude that there is an 0.05, can we conclude that tpopulation standard deviation $11.2 At α increasein the daily workers earnings? Exercises#l mean A real estate research company tracks the cost of apartment rental. The apartment rate...

  • A manufacturing company claims that its new designed batteries last at least sixty hours on average...

    A manufacturing company claims that its new designed batteries last at least sixty hours on average in any smart phone which is currently on the market. Tests on a random sample of 18 batteries from a day's large production run showed a mean battery life of 57.8 hours with a standard deviation of 5.4 hours. Assume that the mean battery life is normally distributed. Step 1 of 5: The appropriate set of hypotheses to be used to test the manufacturer's...

  • A company claims that their large rocket engines use an average 5500 pounds of rocket fuel...

    A company claims that their large rocket engines use an average 5500 pounds of rocket fuel for the rst 15 seconds. A random sample of 8 engines was used and the mean fuel consumption was x = 5880 pounds ( for the rst 15 seconds) and standard deviation s = 250 pounds. Use the a 1% signicance level to test the claim that the population average fuel consumption ex- ceeds 5500 pounds. please include picture of graph and all work...

  • The Personnel office of a large company is doing a study to see if there is...

    The Personnel office of a large company is doing a study to see if there is any correlation between grade point average in college-level business courses and success on the job. A random sample of 10 employees who had been on the job for one year was selected. Each employee was ranked by his or her supervisor with higher ranks meaning better job performance. Then the transcripts were examined and the employees were ranked by grade poing average in business...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT