Please refer to the questions in the attachment. Bio Stats help needed.

'liens: Examine the daa sets given in the problems below and corresponding l, The University of Texas is interested in determining the average ofhours orslecpa pre-med rn*rgetS each night. They surveyed eight random individuals. The data is shown below: // of hours they slept 6 5 6 4 7 tlr previous night a. Calculate the mem number of orsleep this data set. b. CalculMe standard deviation this data Set. c. Calculate the Of this d. Use the Yovided to make a bar graph for the mean number Of hours Md an bar. e. Huvard beard about the study beilg condtxted by the University OfTexas deci&d to replicate it. data is shown below. Wrrthout doing calculations. predict whether the data gathered by Harvard will have a higher lower standard deviation than that or the University of Texas. Why? 12 the previous night f. Now calculate the standard deviation thc gathered by Harvard. it match ryedicticm?