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Hypothesis Test (Means for Two Populations)
Collect 20 samples of each population of any variable and determine which one has a lower average with an alpha of 5%. For each minitab result needs to write a paragraph explaining the results and data tendencies that can be inferred in the report.
Consider the following news headline, "Cigarette Smokers Make Lower College Grades than Nonsmokers" The news article goes on to say that researchers at a university collected information on rate of cigarette smoking (total number of cigarettes smoked..
H0: pi1- pi2 .01 at alpha =.05 where p1=.08, p2=.035, n1 = 200, n2 = 400. Indicate which test you are performing; show the test statistic and the critical values and mention whether one-tailed or two-tailed.
In a sample of 120 people, 50 indicated that they prefer domestic automobiles, 60 said they prefer foreign-made cars, and 10 indicated no difference in their preference. At a 0.05 level of significance, determine if there is evidence of a s..
2. The mean BMI in patients free of diabetes was elsewhere reported as 28.2. The researcher producing the data in question 1 wonders if the BMI in his patients free of diabetes is higher than this reported number.
3) The exam grades of 7 students are given below. 70 , 66 , 72 , 96 , 46 , 90 , 50
Calculate the mean and standard deviation of the G-7 data on unemployment rates. b. Calculate the individual z-scores of the unemployment rates for Canada and Japan. Describe what these z-score values mean in words.
An RCMP officer would like to estimate the true mean speed of all vehicles along a particular stretch of highway. She measures the speeds of a simple random sample of 40 vehicles and calculates a mean speed of 114.55 km/h. The population stan..
Beronulli Law of Large Numbers Let X1, X2, ..., Xn be a random sample from Bernoulli(p). Let Yn = Σ( to n) Xi. Let Wn = Yn/n. Find the limiting distribution of Wn using MGF method.
State the number of friends (or connections) that you have on Facebook (or Linkedin). In case you have more than 365 friends on the social media, think of an alternative group of friends or contacts. What is the chance that there are at least 2 peopl..
The initial research proposal will consist of the following SIX (6) items:What are the implications of my findings for the theory base, for the background assumptions, or relevant literature?
The length of human pregnancies from conception
The U.S. Food and Drug Administration
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