Question

The mean number of sick days an employee takes per year is believed to be about...

The mean number of sick days an employee takes per year is believed to be about ten. Members of a personnel department do not believe this figure. They randomly survey eight employees. The number of sick days they took for the past year are as follows: 12; 4; 15; 3; 11; 8; 6; 8. At the 0.05 significance level, test the claim of the personnel team, that the mean number of sick days per year is less than ten. Conclusion: There is sufficient evidence to support OR not support the claim?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
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
Similar Questions
The mean number of sick days an employee takes per year is believed to be about...
The mean number of sick days an employee takes per year is believed to be about 10. Members of a personnel department do not believe this figure. They randomly survey 8 employees. The number of sick days they took for the past year are as follows: 11; 5; 13; 4; 10; 9; 7; 8. Let X = the number of sick days they took for the past year. Should the personnel team believe that the mean number is about 10?...
The mean number of sick days an employee takes per year is believed to be about...
The mean number of sick days an employee takes per year is believed to be about 10. Members of a personnel department do not believe this figure. They randomly survey 8 employees. The number of sick days they took for the past year are as follows: 10; 5; 15; 5; 9; 10; 6; 9. Let X = the number of sick days they took for the past year. Should the personnel team believe that the mean number is about 10?...
The mean number of sick days an employee takes per year is believed to be about...
The mean number of sick days an employee takes per year is believed to be about 10. Members of a personnel department do not believe this figure. They randomly survey 8 employees. The number of sick days they took for the past year are as follows: 12; 5; 13; 4; 11; 9; 8; 10. Let X = the number of sick days they took for the past year. Should the personnel team believe that the mean number is about 10?...
A reseacher wishes to see if the average number of sick days a worker takes per...
A reseacher wishes to see if the average number of sick days a worker takes per year is greater than 5. A random sample of 26 workers at a large department store had a mean of 5.2. The standard deviation of the population is 1.3. Is there enough evidence to support the researcher's claim at a = 0.05? Assume that the variable is normally distributed. Use the critical value method with tables. State the hypotheses and identify the claim with...
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 5. A random sample of 32 workers at a large department store had a mean of 5.6. Assume the population standard deviation is 1.2. Test the claim that the average number of sick days a worker takes per year is more than 5. Use a 0.01 significance level. a)State the claim and opposite symbolically. b) State the Null and alternate...
A company is interested in estimating μ, the mean number of days of sick leave taken...
A company is interested in estimating μ, the mean number of days of sick leave taken by its employees. Their statistician randomly selects 100 personnel files and notes the number of sick days taken by each employee. The sample mean is 12.2 days, and the sample standard deviation is 10 days. How many personnel files would the statistician have to select in order to estimate μ to within 2 days with a 99 percent confidence interval? Note: Sigma Unknown 136...
Suppose that a company finds that the mean number of sick days for their employees is...
Suppose that a company finds that the mean number of sick days for their employees is 5.5 days/year with a standard deviation of 2.4 days/year. What is the probability that a sample of 30 employees finds a mean of at least 6.5 days/year?
Let X be the random variable giving the number of sick days taken by the “typical”...
Let X be the random variable giving the number of sick days taken by the “typical” worker per year. Suppose that it is known that E(X) = μ = 10, and that the standard deviation of X is σ = 2. (both μ and σ are measured in days. A firm has n = 64 employees. Consider these to be a random sample from the population of all “typical” employees. a) What is the approximate distribution of the average number...
(a) In an insurance company the average number of sick leaves for an employee is 0.5...
(a) In an insurance company the average number of sick leaves for an employee is 0.5 per month. The numbers of sick leaves in different months are independent. Under appropriate assumptions about the distribution, find the probability that the number of sick leaves for an employee is at least four days in a year. Write down and justify your assumptions. (b) An insurance company has three different types of employees, with 100 people of each type. Find the probability that...
Find the mean, median, and mode for the data on the number of sick days used...
Find the mean, median, and mode for the data on the number of sick days used for a group of employees below: Number of sick days taken in the last year Frequency 0 16 1 25 2 29 3 19 4 6 5 3 9 1
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT