Probability And Statistical Inference (10th Edition)
10th Edition
ISBN: 9780135189399
Author: Robert V. Hogg, Elliot Tanis, Dale Zimmerman
Publisher: PEARSON
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Chapter 8.1, Problem 4E
Let X equal the thickness of spearmint gum manufactured for vending machines. Assume that the distribution of X is
The target thickness is 7.5 hundredths of an inch. We shall test the null hypothesis
(a) Define the test statistic and critical region for an
(b) Calculate the value of the test statistic and state your decision clearly, using the following ii = 10 thicknesses in hundredths of an inch for pieces of gum that were selected randomly from the production line:
7.65 7.60 7.65 7.70 7.55
7.55 7.40 7.40 7.50 7.50
(c) Is
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-1 أحسب احتمال كل وجه.
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Please solve the following Probability problem. Show all work and solve all parts that are asked:
HW 1.y.(Yutnori)
Yutnori is played by 2 (groups of) players on a gameboard with pieces thatmove around. Each player takes turns throwing yut sticks - each stick hastwo sides, round and flat, which makes the stick roll. Five combinationsare possible with yut sticks: do, gae, geol, yut and mo. A player achievinga yut or mo is allowed to roll again. Combinations and the number ofmoves they allow on the gameboard are presented in Figure 3 (flat sideup is blank and round side up is filled with x-es).
Assuming each of the 4 Yut sticks falls on both of its sides with equalprobability, what is the probability that:a) you roll a yut?b) you roll a geol ?c) you get a second roll?d) you move 6 spaces in your first turn?In reality, a typical Yut stick is designed so that the probability of flat sidefacing up is around 60%. Try to think of what the previous probabilitieswould be in this case.
Please solve the following Probability Problem, please show all work and solve what is asked:
HW 1.w. (Special game)The atmosphere has heated up and a fight erupted! There are n + 1players and somebody threw the first punch. Once a person is punched,they punch another person in the group at random. What are the oddsthat after m iterations:a) Nobody punches the person who started it?b) Nobody gets punched twice?Now take it up a notch: imagine the first person punched N other peopleat random, and once someone gets punched, they punch another N peoplein the group at random, and so on. Again, what are the odds that afterm iterations:a) Nobody punches the person who started it?b) Nobody gets punched twice?
Chapter 8 Solutions
Probability And Statistical Inference (10th Edition)
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