Applied Statistics in Business and Economics
5th Edition
ISBN: 9780077837303
Author: David Doane, Lori Seward Senior Instructor of Operations Management
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8.6, Problem 30SE
Should p be assumed normal?
- a. n = 200, π = .02
- b. n = 100, π = .05
- c. n = 50, π = .50
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1.
yG)= 1.5
Solve a and c
Find the value of E, the margin of error, for c = 0.95, n = 15 and s=5.5.
O A. 0.787
OB. 3.132
OC. 2.501
O D. 3.046
Chapter 8 Solutions
Applied Statistics in Business and Economics
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- Approximate x to three significant figures.arrow_forwardmean 21 and standard deviation 3. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed.a) Find the area to the left of 26. b) Find the area to the left of 12. c) Find the area to the right of 18. d) Find the area to the right of 27. e) Find the area between 12 and 29.arrow_forwardA. Does this mean the true average length of a pine needle is not 10cm (a = 0.05)? B. Does this mean the true average length of a pine needle is not 10cm (a = 0.01)? c. Does this mean the true average length of a pine needle is not 10cm (a = 0.10)?arrow_forward
- To assess the effect of a new golf ball and new driver on driving distance, I take repeated measurements at each combination of golf ball and driver. The driving distances (meters) during the experiment are shown in the following table. Old Golf Ball New Golf Ball Old Driver. 88, 91, 88 90, 90, 92 New Driver 92, 94, 96 94, 98, 96 a. Estimate how much the driving distance increases by switching from the old to the new driver. b. Use the new golf ball and new driver data to estimate the precision of the driving distance measurements.arrow_forwardA A survey of 100 fatal accidents showed that 17 were alcohol related. Find a point estimate for p, the population proportion of accidents that were alcohol related. a. 0.145 b. 0.205 С. 0.17 d. 0.83arrow_forwardFind the value of E, the margin of error, for c= 0.95, n = 10 and s 3.5. O A. 2.504 В. 2.029 O C. 0.792 O D. 2.466arrow_forward
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