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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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For a confidence level of 98%, find the critical value assuming the population standard deviation is
known.
Round your answer to 2 decimal places."
Transcribed Image Text:Question 16
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For a confidence level of 98%, find the critical value assuming the population standard deviation is
known.
Round your answer to 2 decimal places.
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- to qualify for a police academy, applicants are given a test of physical fitness. The scores are normally distributed with a mean of 66 and a standard deviation of 10 . If only the top 13% of the applicants are selected, find the cutoff score. Round z-value calculations to 2 decimal places and the final answer up to the nearest whole number. Cutoff scorearrow_forwardSD is standard deviationarrow_forwardHow to find the standard deviation after we have found the range?arrow_forward
- Average is 16.7, standard deviation is 3.6, what's x only 14% lower than?arrow_forwardTranslate the statement into a confidence interval. Approximate the level of confidence. In a survey of 1000 adults in a country, 78% think teaching is one of the most important jobs in the country today. The survey's margin of error is ±4%. **PLEASE give four decimal pointsarrow_forwardHow do you find standard deviation?arrow_forward
- On an exam, there is a mean score of 80 with a standard deviation of 12 If each exam is multiplied by 1.2, what will mean and standard deviation be? Please show computationarrow_forwardA distribution of values is normal with a mean of 246.2 and a standard deviation of 99.5. Find P78, which is the score separating the bottom 78% from the top 22%. P78 Enter your answer as a number accurate to 4 decimal places.arrow_forward
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