Question: The width of the confidence interval depends on the sample size. The graph below shows a 95% confidence interval. The data are the training times

The width of the confidence interval depends on the sample size. The graph below shows a 95% confidence interval. The data are the training times (in days) for 20 employees. The mean training time was 51.5 days and the standard deviation was 6.84 days.

2. If you would like to obtain a margin of error that is 2.31, what sample size would be required?

A and D is not answer

The width of the confidence interval depends on the sample size. The

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

1 Cash 2 Laundry Supplies Epicenter Laundry UNADJUSTED TRIAL BALANCE June 30, 2016 ACCOUNT TITLE DEBIT 11,000.00 26,500.00 CREDIT 3 Prepaid Insurance 9,600.00 4 Laundry Equipment 5 Accumulated...

The width of the confidence interval depends on the sample size. The graph below shows a 95% confidence interval. The data are the training times (in days) for 20 employees. The mean training time...

Question 1 {1 point] When should you use the Student's t-distribution? {Select ALL that apply} B When you know the sample standard deviation C] When you have a small sample {MED} C] When you know the...

Stat 95 SPSS Assignment: Comparing Two Means using the Independent-samples t test 1. This exercise is taken from the textbook exercises in your syllabus, exercise 7.45. Z tests are often used when a...

1) During the pre-flight check, Pilot Jones discovers a minor probelm- a warning light indicates that the fuel guage may be broken. If Jones decides to check the fuel level by hand, it will delay the...

Inferential Statistics Exercise 1 A public policy research group is conducting a study of health care plans and would like to estimate the average dollars contributed annually to health savings...

duction This t-Test project will answer the question: Is the average departure delay time for Southwest Airlines more than 15 minutes? For this T-test I expect to find that there is less than a...

Compare the (i) (ii) (iii) three data sets on Q Q the right. 13141516171819 13141516171819 13141516171319 (a) Which data set has the greatest sample standard deviation? 0 A. Data set (i), because it...

...... HELP 10-63. For an F distribution. find the following: on printed circuit boards. Random samples of 25 men and 21 (a) fo25,s.10 (b) fom.249 women were selected, and each subject assembled the...

Greg Peterson has recently been appointed vice president of operations for Webster Corporation. Greg has a manufacturing background and previously served as operations manager of Websters Tractor...

Munir is digging a drainage ditch to prevent water from puddling under his tent. He digs a straight trench tha is 3.5 feet long and drops 8 inches from the level of his tent. What is the angle of...

Question 2 0 of 2 0 View Policies - 5 Current Attempt in Progress The costs that are easiest to trace directly to products are direct materials and direct labor. direct labor and overhead. direct...

2023 1040 form 1.Phillip and Claire are married and file a joint return. Phillip is self-employed as a real estate agent, and Claire is a flight attendant. Phillip and Claire have three dependent...