Astudy of the career paths of hotel general managers sent questionnaires to an srs of 230 hotels belonging to major u. s. hotel chains. there were 119 responses. the average time these 119 general managers had spent with their current company was 11.63 years. (take it as known that the standard deviation of time with the company for all general managers is 1.3 years.)
a. find the margin of error for an 80% confidence interval to estimate the mean time a general manager had spent with their current company: years
b. find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company: years

1 3 5

step-by-step explanation:

i took the test: )

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

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