According to a recent survey, the salaries of entry-level positions at a large company have a mean of $40,756 and a standard deviation of $6500. 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 least $53,000. Round your answer to at least four decimal places.

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A: given data x¯1  =  39s1 = 9n1 = 18x¯2  = 55s2 = 6n2 = 18α = 0.01claim : μ1 > μ2

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A:

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A:

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A: Given data is,2.3 , 3.1, 2.9, 1.6, 0.9 , 4.0, 2.4, 1.3, 3.6, 0.1, 2.4, 3.3sample size(n)=12

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A: GIVEN DATA,  bell shaped distribution,x¯=39s=5n=13CI=0.80α=1-0.80=0.20we have to find out the margin…

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