Question

A researcher estimates that the average height of buildings of 30 or more stories in a large city is less than 700 feet. Based on the following sample is there enough evidence to support the researcher claim at 0.0.25 level of significance?

485 511 841 725 615 520 535 635 616 582

A.hypotheses are:

B.x̅ ,s and Test statistic:

C.Approximate the P-value:

D. include a graph that shows the relative position of the sample outcome and shade the area corresponding to the p-value.

E.Decision:

F.Conclusion:

Answer 1