You calculated the standard deviation of the sample mean differences to be 0.69. You also calculated the sample mean difference to be 1.74. Now you’ll determine whether the difference is significant. For the purpose of constructing the confidence interval, assume that there’s no difference between the population means. Determine the 95% confidence interval for the difference of the sample means. Then complete the statements.

The 95% confidence interval is (?1) to (?2).
The value of the sample mean difference is 1.74, which falls (?3) the 95% confidence interval.

?1 options -3.48, -3.44, -1.38, or -1.26
?2 options 1.38, 1.26, 3.44, or 3.48
?3 options outside or within