Problem III. Toby's Trucking Company determined that, on an annual basis, the distance traveled per truck isnormally distributed with a mean of 50.0 thousand miles and a standard deviation of 12.0 thousand miles.11. What is proportion of the trucks can be expected to travel:1la.a. between 34.0 and 38.0 thousand miles in the year?ong11b.b. between 28.0 and 56.0 thousand miles?11c.c. Equal to or greater than 75.0 thousand miles?12. How many miles will be traveled by at least 50% of the trucks?(Hint: Draw a graph.)12.g bat gui lodl C8 O noowtod lld iw13. How many miles will be traveled by at least 80% of the trucks?(Hint: Draw a giraph.)13.Chuddorg a bnd llo lg 0 Toedl of wolsdllal e malgmae ap14. Suppose a tire manufacturer wants to set a minimum mileage guarantee on its new STREET SPORT tire.Tests reveal the mean mileage is 47,900 miles with a standard deviation of 2.050 miles and is normallydistributed. The manufacturer wants to set the minimum guaranteed mileage so that no more than 4 percent ofthe tires will have to be replaced. What minimum guaranteed mileage should the manufacturer announce?

Answered: Image /qna-images/answer/7c5b8b0f-2038-4ca4-95fc-a09b865c7c79.jpg

Answered: Problem III. Toby's Trucking Company…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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is tested. A mean and standard deviation of 27,000 and 5000 miles, respectively, are computed. Assume that the lives of the tires in miles are approximately normally distributed. Can we conclude from these data that the manufacturer's product is as good as claimed? Use a .05 level of significance. Problem 4 A market research firm is interested in the amount that households in a certain town spend on groceries each week. The firm believes that the average amount spent per house hold each week is less than $90. A random sample of 100 households yields a mean of $88 and a standard deviation of $10. Do these data support the firm's belief? Use P-value to test this claim. Problem 5 An industrial psychologist feels that a big factor in job turnover among assembly line workers is RSIT
need help
Given that the mean weight of senior high school students is 65kg with a standard deviation of 10kg. How many percent of students have a weight between 60 kg to 70 kg? O a. 0% O b. 38.30% C. 19.15% d. 50%
1. Draw by hand or in Excel fully labelled curves on a common scale to represent two sets of scores where:a.Mean = 25, Standard Deviation = 4,Mean = 50, Standard Deviation = 4.b.Mean = 50, Standard Deviation = 2,Mean = 50, Standard Deviation = 5.
2. Human body temperatures are normally distributed with a mean of 98.20°F and a standard deviation of .62F °. Find the temperature that separates the top 7% from the bottom 93%. Round to the nearest hundredth of a degree.
If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5 miles per hour, what would the standardized score be for a pitch that is 97 miles per hour? O 0.4 4.0 1.4 O 1.0
Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?
Do question 3
2. The scores from a state standardized test have a mean of 200 and a standard deviation of 50. The distribution of the scores is roughly bell shaped. The percentage of scores that lie between 100 and 300 is approximately a. 34% b. 47.5% c. 50% d. 68% e. 95%
7.
9a. For binomially distributed data set, approximately what proportion would be below the mean and also within one standard deviation? 16.5%,25%,33%,50%,66%
A. Sam's times varied more over the season that Mike's times. B. Sam's times varied about the same over the season as Brett's times. C. Brett's times varied more over the season than Mike's times. D. Mike's times varied more over the season than Brett's times.

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