Question

The average amount of time it takes for couples to further communicate with each other after their first date has ended is 2.5 days with a standard deviation of 1.9 days. Is this average different for blind dates? A researcher interviewed 34 couples who had recently been on blind dates and found that they averaged 3.1 days to communicate with each other after the date was over. What can be concluded at the 5% level of significance?

ho=

ha=

test statistic z=

critical values=

based on the above we choose to: (choose 1 of the following)

reject the null hypothesis

fail to reject the null hypothesis

accept the null hypothesis

accept the alternative hypothesis

The correct summary would be: (choose 1 of the following) that the average amount of time to communicate after a blind date is different than 2.5.

There is enough evidence to reject the claim

There is enough evidence to support the claim

There is not enough evidence to support the claim

There is not enough evidence to reject the claim

Answer 1