QUESTION 29Employees in a company experience distractions (phone calls, emails, unscheduled visits "etc".)during their office hours. Given that the distraction times are right skewed with a mean of 65 minutesand a standard deviation of 15 minutes. What is the probability that for a random sample of 25employees their mean distraction time is less than 75 minutes?Not enough information.0.85310.99960.9532

Answered: Image /qna-images/answer/86641f82-d9fe-449a-9301-f55c8859de21.jpg

Answered: Employees in a company experience…

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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Heights of 10 year olds. Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6 inches. (a) The height requirement for Batman the Ride at Six Flags Magic Mountain is 54 inches. What percent of 10 year olds cannot go on this ride? 0.4338 (b) Suppose there are four 10 year olds. What is the chance that at least two of them will be able to ride Batman the Ride? .7797 (c) Suppose you work at the park to help them better understand their customers’ demographics, and you are counting people as they enter the park. What is the chance that the first 10 year old you see who can ride Batman the Ride is the 3rd 10 year old who enters the park? 0.106549 (d) What is the chance that the fifth 10 year old you see who can ride Batman the Ride is the 12th 10 year old who enters the park? I only need help with problem d. Thank you!
3. The finish times for marathon runners during a race are normally distributed with a mean of 195 minutes and a standard deviation of 25 minutes. What is the probability that a runner will complete the marathon within 180 minutes?
Prices of homes in Raleigh, North Carolina are Normally distributed with a mean of $231,600 and a standard deviation of $38,550. What is the probability that the mean price of an SRS of 75 homes is more than $240,000? 0.0296 0.4272 O 0.2847 0.9173
daily revenue of a computer repair shop is known to be normally distributed with a mean of $7129 and a st. dev. of $1139. the owner monitors the daily revenue totals for a sample of 35days. what is the probability the mean daily revenue is greater than $6681? answers to 4 decimal places.
a physical fitness association is including the mile run in its secondary school test. the time for this event for girls in the secondary school is known to posses a normal distribution with the mean of 450 seconds and standard deviation of 59 seconds. find the probability that a randomly selected girl in secondary school will take longer than 335 seconds to run the mile A. 0.5107 B. 0.9893 c. 0.0107 D. 0.4893
a sample size of 49 drawn from a population with a mean of 36 and a standard deviation of 15 for the size of the English class. What is the probability the class was between 30 and 40?
O A myopenmath.com Home - ATI Testing МyOpenMath A shareholders' group is lodging a protest against your company. The shareholders group claimed that the mean tenure for a chief exective office (CEO) was at least 11 years. A survey of 94 companies reported in The Wall Street Journal found a sample mean tenure of 9.5 years for CEOs with a standard deviation of 4 years (The Wall Street Journal, January 2, 2007). You want to formulate and test a hypothesis that can be used to challenge the validity of the claim made by the group, at a significance level of 0.05. Your hypotheses are: H0: μ >11 Ні:д < 11 What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) What is the p-value for this sample? (Report answer accurate to 4 decimal places.) This test statistic leads to a decision to O reject the null O accept the null O fail to reject the null As such, the final conclusion is that there is sufficient evidence to conclude that the population mean tenure for…
The amount of money that college students spend on food each week during the academic year is normally distributed with a mean of $31.28 and a standard deviation of $11.42 What is the probability that one randomly selected student will spend less than $25 per week on food? If you randomly select 10 students, what is the probability that their mean will be less than $25?
a sample size of 49 drawn from a population with a mean of 36 and a standard deviation of 15 for the size of the English class. What is the probability the class will have greater than 40?
According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an average of 413 minutes a day on the job. Suppose the standard deviation is 26.8 minutes and the time spent is approximately a normal distribution.What are the times that approximately 68.26% of all workers will fall?A. [394.8 431.2]B. [386.2 439.8]C. [372.8 453.2]D. [359.4 466.6]E. [332.6 493.4] i need step by solution to understand
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
When Freshman 15 The term "Freshman 15" refers to the claim that college students typically gain 15 lb during their freshman year at college. Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of 2.6 lb and a standard deviation of 10.8 1b (based on Data Set 13 "Freshman 15"). Find the probability that a randomly selected male college student gains 15 lb or more during his freshman year. What does the result suggest about the claim of the "Freshman 15"?

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