Question: Use the data in Try It Yourself 1 and a 95% confidence level to find the margin of error for the mean number of hours

Use the data in Try It Yourself 1 and a 95% confidence level to find the margin of error for the mean number of hours worked by grocery store employees. Assume the population standard deviation is 7.9 hours.

Number of hours 26 25 32 31 28 28 28 22 28

a. Identify z_c, n, and σ.

b. Find E using z_c, σ, and n.

c. Interpret the results.

Number of hours 26 25 32 31 28 28 28 22 28 25 21 40 32 22 25 22 26 24 46 20 35 22 32 48 32 36 38 32 22 19

Step by Step Solution

★★★★★

3.59 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a z c 196 n 30 79 b E z c n ... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

598-M-S-P (4936).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Use the data in Try It Yourself 1 to construct a 95% confidence interval for the mean number of hours worked by grocery store employees. Compare your result with the interval found in Example 3. a....

Use the data in Example 1 and technology to construct 75%, 85%, and 90% confidence intervals for the mean number of hours worked by grocery store employees. How does the width of the confidence...

Use these male measures of female attractiveness given in Exercise 17 "Speed Dating" in Section 7-2 on page 329: 7, 8, 2, 10, 6, 5, 7, 8, 8, 9, 5, 9. Use the bootstrap method with 1000 bootstrap...

Use the data in Example 1 and a 95% confidence level to find the margin of error for the mean number of hours spent on required athletic activities by all student-athletes in the conference. Assume...

1 (1 point) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over...

1.Given that x is a normal variable with mean=49and standard deviation=6.2, find the following probabilities. (Round your answers to four decimal places.)(a) P ( x 60) (b) P ( x 50) (c) P (50 x 60)...

MONTGOMERY COLLEGE - TAKOMA PARK CAMPUS MATH 117 - ELEMENTS OF STATISTICS FINAL EXAMINATION Given Date: 08/08/2016 at 6PM EST Prof: Dr. J. Wulu Due Date: 8/10/2016 at 11:59PM EST Max Point: 500...

1. [-/4.42 Points]DETAILSBBUNDERSTAT12 7.1.015. MY NOTES ASK YOUR TEACHER Allen's hummingbird ( Selasphorus sasin ) has been studied by zoologist Bill Alther.Suppose a small group of12Allen's...

2. There are 24 students enrolled in an introductory statistics class at a small university. Asan in-class exercise the students were asked how many hours of television they watcheach week. Their...

1. Allen's hummingbird ( Selasphorus sasin ) has been studied by zoologist Bill Alther.Suppose a small group of14Allen's hummingbirds has been under study in Arizona. The average weight for these...

One factor that must be controlled for in interpreting pesticide exposure studies is. Which option would be correct: a) Physiological state of the worker b) Characteristics of the xenobiotic c) Both...

As we know research is critically important to the fashion business. 1. Through your own observations what do you think are the current fashion trends? 2. What sort of changes are you seeing? 3. Do...

Celtar plc has outstanding 5 0 , 0 0 0 ( $ 5 0 par value ) 5 % cumulative and nonparticipating preference shares and 3 6 0 , 0 0 0 ( $ 1 par value ) ordinary shares. The preference shares were issued...

21. Briefly explain what the time value of money means.

Determine whether there is a perfect positive linear correlation, a strong positive linear correlation, a perfect negative linear correlation, a strong negative linear correlation, or no linear...

Required:\ $2 . iderity an approphate label (account name) for each item as it would be reported in the company/t tinanoul atasemerts and be type of account\ \\\\table[[,Labil,The],[3. Conne atvd...

Titan Mining Corporation has 8.9 million shares of common stock outstanding, 330,000 shares of 5 percent preferred stock outstanding, and 175,000 7.7 percent semiannual bonds outstanding, par value...

Find the APR, or stated rate, in each of the following cases. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. Use 365 days in a...