Results of 90% confidence intervals are consistent with results of two-sided tests with which significance level? Explain the connection. A 90% confidence interval is consistent with a two-sided test with significance level alphaequals nothing because if a two-sided test with this significance level rejects the null hypothesis, then the confidence interval ▼ does not contain contains the value in the null hypothesis.

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?