The average amount of time it takes for couples to further communicate with each other after their first date has ended is 3.95 days. Is this average longer for blind dates? A researcher interviewed...

The average amount of time it takes for couples to further communicate with each other after their first date has ended is 3.95 days.  Is this average longer for blind dates? A researcher interviewed 42 couples who had recently been on blind dates and found that they averaged 4 days to communicate with each other after the date was over.  Their standard deviation was 0.415 days. What can be concluded at the α = 0.05 level of significance?

1. For this study, we should use Select an answer t-test for a population mean z-test for a population proportion

 H0:H0:  ? p μ  Select an answer > = <>

 H1:H1:  ? p μ  Select an answer > = <>

1. The test statistic ? z t  =  (please show your answer to 3 decimal places.)


2. The p-value =  (Please show your answer to 4 decimal places.)