Could you answer and explain how done. Also explain what the results mean and include a graph of how the distribution would look like please.

LAB 4 HYPOTHESIS TESTING WITH Z TEST THIS ASSIGNMENT MUST BE TYPED, A researcher is interested in whether 7" graders who own electronic book readers read the same number of books as the average 7" grader. The average number of books read by the average /" grader is It = 3.9 0 = 1.8 The scores from her sample follow. Write a brief report (answer the following questions). 1. State a research question 2. State the hypotheses! a. H. and b. H 3. Set the criteria for a decision-set the alpha level (you pick)-and report your critical value for z 4. Collect data (this has already been done for you) and compute sample statistic. Enter data into an SPSS data file. b. Compute the mean for your sample (you must use SPSS) Click on "Analyze", select "Descriptive Statistics", and click on "Descriptives". Select the variable you created (move it into the variables window) and click on the OPTIONS button. Disable "Minimum" and "Maximum" options by clicking on the checked box in front of them. Click on Continue and OK. Copy and paste the table created by SPSS into your word file. c. Calculate the z-score that corresponds to your sample's mean Make a decision and explain clearly why you are making the decision you are making. In your explanation, make sure to refer to alpha, to whether it was a one-tail or a two-tail test, to the z-score(s) that separates the critical area from the rest of the distribution and to the z-score that corresponds to your sample's mean