A Filipino household watched an average of 25 hours of television per week witha standard deviation of 8 hours. Arandom sample of 40 household is selected. What is the probability that the mean number of hours of televisionthey watch per week is less than 22 hours?64.80%I99.11%35.20%0.89%

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Answered: A Filipino household watched an average…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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At one college, GPA's are normally distributed with a mean of 3 and a standard deviation of 0.6. Fill in the blanks, 99.7% of GPAs are between ____ and ____. A. 1.8, 4.2 B. 3, 3.6 C. 2.4, 3.6 D. 1.2, 4.8
The average monthly cable bill in 2016 has been reported to be $92.Assume monthly cable bills follow a normal distribution with a standard deviation of $8.50. a. What is the probability that a randomly selected bill will be 4. between $85 and $95? b. Which monthly cable bill represents the 65th percentile?
Consider an exam with a mean of 76 and a standard deviation of 5 points. What is the probability that a randomly chosen student scored got a B or better on the exam (scored an 80 or better)? A. 0.3561 B. 0.7881 C. 0.4511 D. 0.2119
The time required to play a new video game is normally distributed. If the mean time to play this game is 23.5 hours with a standard deviation of 1.7 hours, what is the probability that a player will complete this game in between 21.8 and 25.2 hours? 99.74% 68.24% 47.72% 95.44%
The consumption of processed fruits by people in the U. S. in a recent year was normally distributed with a mean of 218.2 pounds and a standard deviation of 68.1 pounds. A random sample of 40 people is selected. What is the probability that the mean amount of consumption is more than 200 pounds? a. 95.45% b. 62.35% O c. 4.55% d. 78.34%
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A Filipino household watched an average of 25 hours of television per week witha standard deviation of 8 hours. A random sample of 40 household is selected. What is the probability that the mean number of hours of television they watch per week is less than 22 hours? 64.80%I 99.11% 35.20% 0.89%