Provide an appropriate response.The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 4.5 minutes and astandard deviation of 1 minute. Find the probability that a randomly selected college student will take between 3.0 and 5.5 minutes to find a parking spot inthe library lot.O 0.4938O 0.09190.2255O 0.7745

Obtain the Z-score for the random variable X equals 3.0. The Z-score for the random variable X…

Answered: Provide an appropriate response. The…

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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The length of time taken to complete a particular task on a construction site is found to be Normally distributed with mean 45 min and standard deviation 10 min. Calculate the probability that the task will take between 30 min and an hour. Give your answer to three decimal places. Answer:
A normal distribution has a mean of 105 and a standard deviation of 10. Find the probability that a value selected at random is in the following interval. at most 125 The probability that a value selected at random is in the given interval is%. (Type an integer or a decimal.) D
The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption of American men is normally distributed with a standard deviation of 0.8 grams. Suppose an American man is randomly chosen. Let X = the amount of sodium consumed. Round all numeric answers to 4 decimal places where possible. b. Find the probability that this American man consumes between 9.3 and 9.9 grams of sodium per day. c. The middle 10% of American men consume between what two weights of sodium?Low: High:
rovide an appropriate response. Use the Standard Normal Table to find the probability. Assume that the heights of women are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. The cheerleaders for a local professional basketball team must be between 65.5 and 68.0 inches. If a woman is randomly selected, what is the probability that her height is between 65.5 and 68.0 inches? OA. 0.9608 OB. 0.1844 OC. 0.3112 OD. 0.7881 TUAL O ^# 40) D insert prt sc backspace s Y 1 A @ 2 W S #t 3 E D $ C JOI 4 R F % 5 O V T G 6 Y & I H 7 U B N 8 T M 144 ( 9 K 4 11 ) O O L A4 P { + [ ? 1 = } ← ] pause ctri 9:17 P 6/19/202 enter
Provide an appropriate response. Use the Standard Normal Table to find the probability. The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting more than 300 days. A. 0.9834 B. 0.0166 C. 0.3189 D. 0.2375
A population has a mean of and standard deviation of 12. A sample of 36 observations will be taken . The probability tha the sample mean will be between 80.54 and 88.9 is A 0.7200 O B 0.0347 C 0.9511 D 8.3600
Cans of regular Coke are labeled as containing 12 oz. Statistics students weighed the contents of 6 randomly chosen cans, and found the mean weight to be 12.12 ounces. Assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz and a standard deviation of 0.09 oz. Find the probability that a sample of 6 cans will have a mean amount of at least 12.12 oz. .99
A subway train arrives every eight minutes during rush hour. We are interested in the length of time a commuter must wait for a train to arrive. The time follows a uniform distribution. a. Find the mean, μ = b. Find the standard deviation, σ = Round to the nearest tenth.
15
Money people carry into the store is normally distributed with a mean of $258 dollars and a standard deviation of $35. In a sample of 76 Americans who walked into that store find the probability that a random customer will have more than $260 in his or her wallet. a. 0.8819 b. 0.9938 c. 0.2615 d. 0.3091 e. 0.3467
For a specific year. Americans spent an average of $52 for ice cream. The amount spent is normally distributed and the standard deviation is $7.50. Find the probability that a randomly American spent more than $47 per year on ice cream. Show work. __________ If 1200 Americans were randomly selected, about how many would you expect to have spent less than $47 per year on ice cream? Show your work. ________

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