4. Manhole covers must be a minimum of 22 in. indiameter, but can be as much as 60 in. in diameter.Assume that a manhole is constructed to have acircular opening with a diameter of 22 in. Men haveshoulder widths that are normally distributed with amean of 18.2 in. and a standard deviation of 1.0 in.a) What percentage of men will fit into the manhole?Type your answer...Db) Assume 36 men are selected at random, what is theprobability that their mean shoulder breadth is lessthan 18.5 in.?Type your answer...

Answered: 4. Manhole covers must be a minimum of…

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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Similar questions

The annual Commissions Per Sales Person a manufacturer of light employed by Machinery averaged $40000. A Standard deviation of $5000. The percent between $32000 and $42.000 equal to A) 60.0% B) 39.94% c) 34.13 %. 0) 81.66%
If a sore of normal distribution is 2.5, mean of distribution is 45 and standard deviation of normal distribution is 3 then the value of x for normal distribution is ________ A.) 7.5 B.) 47.5 C.) 37.5 D.) 67.5
Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What proportion of people has diastolic blood pressures less than 80? A)0.661 B)0.338 C)0.50 D)0.75
The heights of senior girls are normally distributed with a mean of 65 inches and a standard deviation of 2.2 inches. What percent of senior girls are … 4) Under 66 inches tall? Group of answer choices A.) 67.36% B.) 55.96% C.)93.57% D.)78.23%
The average teachers salary in a particular state is $54,166.If the standard deviation is $10,200,find the salaries corresponding to the following z scores. a) 2 b) -1 c) 0 d) 2.5 e)-1.6
The IQ of a person follows a normal distribution and has a mean of 100 and a standard deviation of 15. What percentage of the people have IQ scores between 70 and 130? A) 95% B) 50% C) 2.5% D) 68%
For testing the difference between three or more sample means, the level of measurement is assumed to be a. nominal b. ordinal c. interval-ratio d. any of the above
The annual rainfall in a certain region is approximately normally distributed with mean 42.5 inches and standard deviation 6 inches. Round answers to the nearest tenth of a percent.a) What percentage of years will have an annual rainfall of less than 44 inches? %b) What percentage of years will have an annual rainfall of more than 40 inches? %c) What percentage of years will have an annual rainfall of between 39 inches and 43 inches?
Please answer items 35 to 37 asap. Answer in 32 to 24 is in the photo attached
Both sets of values have an average of 20. Is Set A's standard deviation smaller, larger, or about the same as Set B's? Hint: A person can answer this question mostly by looking at the values without performing any substantial calculations. Set A: 2 11 29 38 Set B: 15 19 21 25 a) about the same b) larger c) smaller
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 6 ounces.Use the Empirical Rule, finda) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 43 and 73 ounces? %c) What percentage of the widget weights lie above 49 ?
The standard deviation of a population of 10000 volume is 62cm. Find out how many units the sample should consist of so that the standard error of the mean is not more than 25 11th - cm. a) 21 OB) 17 OC) 32 OD) 7 O TO) 10

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