Mean part 1

PART 2: INFERENTIAL STATISTICS 8. Randomly select a large sample (more than 30 data values "Sample") from the data set. Describe clearly the method of selecting the random sample. -5 pts- 9 a Calculate 80%, 90% and 99% confidence intervals for the mean. Calculate the 80% confidence interval by hand "typed" (show all this work) and calculate the rest in EXCEL. Include a printout of the technology calculations in your final product. -15 pts- b. How does this relate to the population mean you calculated in part 1 of the project when the set of data was treated as a population? -5 pts- 10. Use the sample you chose to perform a meaningful hypothesis test for the mean for the large sample (question # 8) -10 pts-\fRange Variance Standard Deviation