the numbers placed are all correct. for the table when it says confidence coeffi

Question

the numbers placed are all correct.
for the table when it says confidence coefficient is .86, how was this calculated?

A study commissioned by the City of Houston in luly 2013 asked a random sample of unemploved Houstonians how many weeks they have been unemployed. Use the data in the Unemployed sheet in thi numerical answer cell below MUST reference Excel output cells in the Unemployed sheet. employed Houstonians how many weeks they have been is workbook to generate excel output to answer the following questions. Each orange Can you conclude that the average duration of unemployment in Houston is less than the national everage of 31 weeks during luly 2013 at alpha-0.07 Step 1: HO: 31 Ha: Step 2: t crit in row 203 if the hypothesis is one tallod. Reject HO If Fil in row 207 if the hvppthesie is tvo talled. The smaller number must be tyoed first HWSolurtien O P

Explanation / Answer

Confidence cofficient =confidence level/100

Here

confidence level for an interval which is defined as if at a particular confidence level we constructing confidence intervals many times then there is chance that confidence level times those interval contains true population parameter

i.e.let 95 % confidence level then that means if we construct many 95% level confidence interval then 95% of those intinterval will contain true parameter value

so for 95%confidence level

confidence cofficient=95/100=0.95

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