Question

HighTech Inc. randomly tests its employees about company policies. Last year in the 390 random tests...

HighTech Inc. randomly tests its employees about company policies. Last year in the 390 random tests conducted, 12 employees failed the test.

  1. Develop a 95% confidence interval for the proportion of applicants that fail the test. (Round your answers to 3 decimal places.)

  1. Would it be reasonable to conclude that 5% of the employees cannot pass the company policy test?

Yes
No
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

(a)

Hence, the 95% confidence interval is (0.014, 0.048).

(b)

Since confidence interval does not contain 5% or 0.05 so it would not be reasonable to conclude that 5% of the employees cannot pass the company policy test.

Answer: no

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
HighTech, Inc. randomly tests its employees about company policies. Last year in the 550 random tests...
HighTech, Inc. randomly tests its employees about company policies. Last year in the 550 random tests conducted, 24 employees failed the test. Develop a 95% confidence interval for the proportion of applicants that fail the test. (Round your answers to 3 decimal places.) Would it be reasonable to conclude that 6% of the employees cannot pass the company policy test? No Yes
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last...
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 400 applicants, 30 failed the test. Develop a 95% confidence interval for the proportion of applicants that fail the test. ____________________________________________________________ Would it be reasonable to conclude that 6% of applicants fail the drug test? Explain why or why not. ____________________________________________________________
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last...
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 210 applicants, 24 failed the test. (1)Develop a 90% confidence interval for the proportion of applicants that fail the test. (Round your answers to 3 decimal places.) For the applicants, the confidence interval is between ____ and ____. (2) Would it be reasonable to conclude that more than 7% of the applicants are now failing the test? Yes or No.
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last...
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 400 applicants, 30 failed the test. a) Develop a 90% confidence interval for the proportion of applicants that fail the test. b) Would it be reasonable to conclude that 6% of applicants fail the drug test? Explain why or why not.
Instructions: Ensure that the version number on the Word file and the Excel data file match....
Instructions: Ensure that the version number on the Word file and the Excel data file match. Type your answers in the blank areas. Save the file as “Chapter 8-9 Exam – Your Name”. Submit your completed Word file on Blackboard under the Exam 3 Folder. The manufacturer of a new line of ink-jet printers would like to include as part of its advertising the number of pages a user can expect from a print cartridge. The results from a sample...
Suppose you work for Fender Guitar Company and you are responsible for testing the integrity of...
Suppose you work for Fender Guitar Company and you are responsible for testing the integrity of a new formulation of guitar strings. To perform your analysis, you randomly select 51 'high E' strings and put them into a machine that simulates string plucking thousands of times per minute. You record the number of plucks each string takes before failure and compile a dataset. You find that the average number of plucks is 6,398 with a standard deviation of 286.12. A...
A company seeks to employ a new public relations manager. The hiring committee surveys 10 public...
A company seeks to employ a new public relations manager. The hiring committee surveys 10 public relations managers and finds the average salary is $104652.343 with standard deviation of $1762.4067. What is the 95% confidence interval for the true average public relations manager salary? Question 1 options: 1) ( 104650.081 , 104654.605 ) 2) ( -103391.593 , 105913.093 ) 3) ( 104095.021 , 105209.665 ) 4) ( 103410.63 , 105894.056 ) 5) ( 103391.593 , 105913.093 ) Suppose you work...
1. A city official claims that the proportion of all commuters who are in favor of...
1. A city official claims that the proportion of all commuters who are in favor of an expanded public transportation system is 50%. A newspaper conducts a survey to determine whether this proportion is different from 50%. Out of 225 randomly chosen commuters, the survey finds that 90 of them reply yes when asked if they support an expanded public transportation system. Test the official’s claim at α = 0.05. 2. A survey of 225 randomly chosen commuters are asked...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT