A researcher reports that the average salary of assistant professors in a certain state is $42,000. Arandom sample of 30 assistant professors in that state has a mean salary of $43.260 and a standarddeviation of $5230. Assuming that the population is normally distributed, use the graphingcalculator to find the P-value.(Round answer to two decimal places.)

Hypothesized Population Mean, μ0 = $42000 Sample size, n = 30 Sample mean , x¯ = 43260 sample…

Answered: A researcher reports that the average…

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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assume that adults have IQ scores that are normally distributed with a mean of 99.5 and a standard deviation of 15.5. Find the probability that a randomly selected adult has an IQ greater than 118.3. (Hint: Draw a graph.) The probability that a randomly selected adult from this group has an IQ greater than 118.3 is
According to a recent survey, the salaries of assistant professors have a mean of $41,750 and a standard deviation of $8000. Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors who earn at most $50,000. Round your answer to at least four decimal places.
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According to a recent survey, the salaries of entry-level positions at a large company have a mean of $41,750 and a standard deviation of $7000 . Assuming that the salaries of these entry-level positions are normally distributed, find the proportion of employees in entry-level positions at the company who earn at most $45,000 . Round your answer to at least four decimal places.
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Suppose the variance of a sample is 5.7. Find the standard deviation. Round to two decimals. Submit Question

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