An auto shop wants to examine the proportion of customers that have to return after an appointment. Last year, an examination of 350 customers found that 34.7% had to return after an appointment. You instituted some changes at the auto shop this year, and found from a sample of 375 customers that 41.6% had to return after an appointment. You want to conduct an analysis to determine if there has been a change in the proportion of customers that need to return after an appointment since the past year, with a significance level of 10%. Using this information, what is the SE (Pcurrent year Plast year) of your analysis? Round any intermediate numbers to four decimal places and choose the closest choice to your answer. -

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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An auto shop wants to examine the proportion of customers that have to return
after an appointment. Last year, an examination of 350 customers found that 34.7%
had to return after an appointment. You instituted some changes at the auto shop
this year, and found from a sample of 375 customers that 41.6% had to return after
an appointment. You want to conduct an analysis to determine if there has been a
change in the proportion of customers that need to return after an appointment
since the past year, with a significance level of 10%. Using this information, what is
the SE (Pcurrent year - Plast year) of your analysis? Round any intermediate
numbers to four decimal places and choose the closest choice to your answer.
0.3827
0.0149
0.0361
0.0254
0.0275
Transcribed Image Text:An auto shop wants to examine the proportion of customers that have to return after an appointment. Last year, an examination of 350 customers found that 34.7% had to return after an appointment. You instituted some changes at the auto shop this year, and found from a sample of 375 customers that 41.6% had to return after an appointment. You want to conduct an analysis to determine if there has been a change in the proportion of customers that need to return after an appointment since the past year, with a significance level of 10%. Using this information, what is the SE (Pcurrent year - Plast year) of your analysis? Round any intermediate numbers to four decimal places and choose the closest choice to your answer. 0.3827 0.0149 0.0361 0.0254 0.0275
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