3 months 6 months 9 months 1.00 5.43 5.20 1.74 3.06 5.68 1.03 2.52 3.07 4.23 3.96 5.11 1.25 6.32 2.81 1.19 4.20 3.38 2.00 2.11 5.12 0.97 1.55 8.44 2.69 5.66 6.76 2.38 3.22 2.17 3.99 3.20 1.75 4.33 5.83 4.99 1.03 1.83 4.55 9.70 3.42 5.83 1.88 4.02 7.25 4.32 2.92 7.35 1.99 5.87 5.33 4.49 4.93 13.22 4.32 5.19 8.50 1.90 7.25 6.71 2.10 3.27 5.51 0.51 5.36 4.31 2.17 3.33 8.70 1.06 5.97 8.22 2.34 3,54 6.14 1.93 4.21 5.37 1.20 5.63 8.97 2.93 5.75 10.15 4.80 5.23 4.25 3.15 7.82 3.00 2.87 3.71 5.79 3.21 3.00 5.94 4.32 4.35 5.55 1.62 3.53 4.64 3.10 4.82 4.20 2.26 5.30 7.08 3.24 4.45 1.30 3.14 4.22 7.25 4.23 3.95 6.84 1.20 4.32 12.15 3.51 7.97 7.18 2.10 7.24 11.75 4.21 4.03 4.31 3.86 9.18 7.17 3.89 4.29 9.46 1.45 4.67 5.21 3.92 4.42 4.92 1.94 1.18 7.08 4.89 6.92 6.44 0.71 3.12 4.96 4.45 5.10 6.03 4.84 0.73 5.90 5.85 5.26 6.21 1.37 4.79 8.86 5.66 3.42 7.26 6.22 2.46 3.09 3.13 5.37 10.11 0.76 3.16 5.27 4.22 4.21 6.46 4.21 5.21 4.81 5.32 4.82 8.23 2.09 4.59 5.08 4.02 4.79 6.27 4.11 5.75 7.62 3.15 1.73 3.66 4.55 0.62 3.71 6.84 0.29 7.10 0.20 4,31 10.58 2.77 1.80 5.07 0.14 1.25 3.58 2.01 3.65 6.61 1.92 4.73 9.69 5.32 0.48 9.76 4.60 1.66 4.06 0.27 1.55 6.20 Ketogenic Atkins Zone

A substance abuse counselor wants to demonstrate the effect of situational stress on alcohol cravings. He recruits two groups of men who are similar in respect to history of alcohol use and demographic variables. He divides them in to two groups. In one group(n=11), the men are exposed to a stressful situation and then asked to complete a measure rating their alcohol cravings on a scale from 0-10, where 0 representsno cravings and 10 represents intense cravings. In the second group (n=10), the men are exposed to a neutral situation and asked to complete the same measure. What test  and graph should I create to find out if a stressful situation result in more intense alcohol cravings than a non-stressful situation?

What was the power for this study?

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 93 of the 109 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below.

A researcher believes that there may be a negative association between the quantity of fertilizer used and the percentage of the population who live in rural areas in different countries. The data below shows the percentage of the population who live in rural areas and the fertilizer use measured in kg per hectare, for a random sample of 11 countries. 33%= 76kg, 6%=44kg, 58%= 6kg, 35%=68kg, 81%=3kg, 69%=10kg, 61%=7kg, 7%=176kg,74%=5kg, 71%=137kg, 17%=157kg Use the Spearman's rank order coefficient method to affirm or disagree with the researchers assumption.

Acne is a common skin disease that affects most adolescents and can continue into adulthood. A study compared the effectiveness of three acne treatments and a placebo, all in gel form, applied twice daily for 12 weeks. The study's 517 teenage volunteers were randomly assigned to one of the four treatments. Success was assessed as clear or almost clear skin at the end of the 12 week period. The results of the study can be seen in the table below. Using the appropriate statistical test, determine if there is significant evidence that the four treatments perform differently. If so, how do they compare.

The Chamber of Commerce in a Canadian city has conducted an evaluation of 300 restaurants in its metropolitan area. Each restaurant received a rating on a 3-point scale on typical meal price (1 least expensive to 3 most expensive) and quality (1 lowest quality to 3 greatest quality). A crosstabulation of the rating data is shown below. Forty-two of the restaurants received a rating of 1 on quality and 1 on meal price, 39 of the restaurants received a rating of 1 on quality and 2 on meal price, and so on. Forty-eight of the restaurants received the highest rating of 3 on both quality and meal price. Quality (x) Meal Price (y) Total 1 2 3 1 42 39 3 84 2 33 63 54 150 3 3 15 48 66 Total 78 117 105 300 (a) Develop a bivariate probability distribution for quality and meal price of a randomly selected restaurant in this Canadian city. Let  x = quality rating  and  y = meal price. Quality (x) Meal Price (y) Total 1 2 3 1         2         3         Total…

Table 1 summarizes the demographic and baseline data. Since two independent groups were included, the baseline data between these two groups were compared and p values were included in this table. Please tell which specific statistical test was used for the comparison between number of intubation attempts and trauma. Your answer should be as specific as possible. For example, was the test two-sided or one-sided? Was the test for paired samples or not?

In a certain study, the effect on oat yield was compared for the Pallinup, Overberg and Magnifico varieties of oats and four different concentrations of manure (0, 0.2, 0.4 and 0.6 tonnes per acre). Identify the experimental units, response variable, factor(s), levels of each factor and treatments.

A biologist wants to determine if different temperatures (15oC, 25oC, or 35oC) and amounts of sunlight (partial or full) will affect the growth of plants. He will test each combination of temperature and sunlight by randomly assigning 15 plants to each of the combinations. What type of sampling is described in this study? one sample paired data two samples more than two samples