Shelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go fishing in Cape Breton. They found two pools in a stream containing speckled trout (assume equal variance), with the Macdonalds at one pool and the MacNeills at the other, and at the end of the day each team had caught (and released unharmed) 5 fish. For each fish they recorded the length and weight, and the data on length (in cm) is summarized below (Give the answers to 2 places past decimal) Team Macdonald MacNeill Mean 18.1 20.43 a.) To test whether or not the fish have the same mean size in the two pools, the null hypothesis will be: Incorrect H0: & 1-X 2 = -2.33 Incorrect H0: p1-µ2 = -2.33 Incorrect H0: & 1-8 2 = 0 Correct: H0: p1-p2 Computer's answer now shown above. Incorrect. Tries 1/1 Previous Tries b.) The alternative hypothesis for this test will be: Ha: & 1-8 2# -2.33 Ha: u1-u2 -2.33 Ha: X 1-8 2 #0 Ha: p1-µ2 0 Submit Answer Tries 0/1 c.) What is the pooled estimate of the variance? Submit Answer Tries 0/5 d.) Compute the value of the test statistic. [ Submit Answer Tries 0/5 Std.Dev 1.8 2.2 Find bounds on the P value for the test. P < .001 .01 < P < .05 .05 < P < .1 P>.1 Submit Answer Tries 0/2 f) Is there statistically significant evidence against HO at a = 0.05? Yes No Not enough information to decide Submit Answer Tries 0/1

The first five rows of the BIRTHS data set are shown here. For GENDER 1 =male and 0 = female, WEIGHT is birth weight in grams, and CHARGES is in dollars. FACis facility, ADMIT and DISCHARGE are named days of the week. FAC INSURANCE GENDER ADMIT DISCHARGE WEIGHT CHARGES Albany Medicaid 0 FRI SUN 3500 13986 Albany Blue Cross 1 FRI SUN 3900 3633 Bellvue Blue Cross 0 WED THU 900 359091 Albany Self Pay 1 MON SAT 2800 8537 Olean Medicaid 1 FRI SUN 3700 3633 Describe the appropriate level of measure for each of the variables of the data. (Nominal,Ordinal, or Numerical - discrete, or Numerical - continuous).

Look the image and answer the following questions: a. What is the independent variable (IV)? b. How many levels do we have for the IV? C. What is the level of measurement for the IV? d. What is the DV (remember, the DV is the data)? e.What is the level of measurement of the DV? f. Why a Bar graph is the best graph to display this data? Explain g. Construct a Bar graph that incorporates all the information in this table. h. Looking at your graph, do you think that the relaxation training really worked. Explain your answer.

1. Risk Ratio  a. Table 1 b. Table 2 2. Odds Ratio a. Table 1 b. Table 2 3. Answer the following using the information calculated above: a. Discuss how the Risk Ratio compare to the odds ratio for table 1. b. Discuss how the risk ratio compare to the odds ratio for table 2. c. Describe the reasons for the differences/simi