The length in days of human pregnancies is known to benormally distributed with a mean of 266 days and a standarddeviation of 16 days, a random sample of 50 pregnantwomen were selected from the population, what is theminimum number of days that belongs to the longest 5% ofall pregnancies last?A 269.72 daysB) 239.68 daysC) 292.32 daysD) 262.28 days

The information provided in the question are as follows : Mean (µ) = 266 Standard deviation (σ) = 16…

Answered: The length in days of human pregnancies…

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 mean time spent solving a problem is 4.25 minutes with a standard deviation of 1.7 minutes. Find the probability a sample of 32 test takers spend a mean more than 5 minutes on said problem. Show work
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Combined test scores were normally distributed with mean 1494 and standard deviation 348. Find the combined scores that correspond to these percentiles. a) 30th percentile b) 75th percentile c) 80th percentile Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a) The combined scores that correspond to 30th percentile is about (Round to the nearest integer as needed.) b) The combined scores that correspond to 75th percentile is about (Round to the nearest integer as needed.) c) The combined scores that correspond to 80th percentile is about (Round to the nearest integer as needed.)
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