Statistics:Answer the following using excelAssume that the time it takes to finish a particular task of a complicated manufacturingprocess follows a normal distribution with a mean of 4.3 minutes with a standarddeviation of 0.7 minutes.a) what is the probability that it takes longer than 5 minutes to complete this task?b) what is the probability that it takes anywhere between 4 and 5 minutes to completethis task?

Here, mean is 4.3 and standard deviation is 0.7. We will use z standard normal distribution with…

Answered: Statistics Answer the following using…

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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Question Heip Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per minute and a standard deviation of a = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 71 beats per minute and 79 beats per minute. The probability is O. (Round to four decimal places as needed.) b. If 4 adult females are randomly selected, find the probability that they have pulse rates with a mean between 71 beats per minute and 79 beats per minute. The probability is O. (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? A. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size. B. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample…
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Scores from the midterm statistics exam followed a normal distribution with a mean of 69 and a standard deviation of 10. If a student had to score at least an 93 to earn an A, what is the probability that a student earned an A? (Use a table or technology. Round your answer to four decimal places.)
Plz answer b part only and gets thumb up
SAT exam math scores are normally distributed with mean 523 and standard deviation 89. Give the probability a test taker will score between a 500 and 600 on the math portion of the SAT. round to four decimal places.
Page > of 3 The Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a mean of 27.8 miles per gallon, with a standard deviation of 4.2 miles per gallon. Assume that a Normal model applies. Find the probability that a randomly selected automobile will average: 1. Less than 24 miles per gallon. 2. More than 19 miles per gallon. 3. Between 24 and 30 miles per gallon. 45°F Cloudy here to search (25
1 point A study indicates that the weights of adults are normally distributed with a mean of 72 kg and a standard deviation of 8 kg. What is the probability that a randomly selected adult weighs between 65 kg and 77 kg? ) 0.3106 O 0.5463 O 0.0749 0.2357 pair
Using Chebyshev's theorem and the normal distribution, compare the probability that a number will lie within 3 standard deviations of the mean of a probability distribution. Explain what is observed. .... The probability a number will lie within 3 standard deviations of the mean according to Chebyshev's theorem is (Type an integer or decimal rounded to four decimal places as needed.)
Durations of clinical research studies awarded by a particular federal agency are assumed to follow a normal distribution, with a mean of 24 months and a standard deviation of 2.5 months.Find the probability that a study is awarded with a duration between 15 and 25 months.
A study discovered that Americans consumed an average of 13.2 pounds of chocolate per year. Assume that the annual chocolate consumption follows the normal distribution with a standard deviation of 3.2 pounds. d. What is the probability that an American will consume exactly 12 pounds of chocolate next year? enter your response here (Round to four decimal places as needed.) Part 5 e. What is the annual consumption of chocolate that represents the 80th percentile? The 80th percentile is represented by an annual consumption of enter your response here pounds of chocolate. (Type an integer or decimal rounded to one decimal place as needed.)
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?

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