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A researcher would like to know if a vegan diet will lower cholesterol. A sample of nMDSS = 9 adults is obtained, and each has their cholesterol levels measured. Each participant then goes on a strict vegan diet for the next 45 days and cholesterol levels are measured again after that. Average total cholesterol dropped by = 14 points after the vegan diet with = 1152 for the difference scores.
What is the sample standard deviation? Report to one decimal.
What is the value for the estimated standard error? Report to one decimal.
What if the observed t value from the example above? Answer to two decimals.
What is the probability that Bob will win that wonderful trip on the basis of his gasoline sales this month?
What is the probability that all four people complete the task in less than 30 seconds?- What is the probability that exactly one person completes the task in less than one minute?
What control limits should be applied to his sample?
the 10 year survival rate for bladder cancer is approximately 50. if 20 people who have bladder cancer are properly
Use an appropriate sample space with equiprobable elements to answer the following question
It does not matter, when data are skewed mean and median are the same.
Find a z score for which the area under the standard normal curve from -z to z is 50%. (b) Find the range of scores which will be assigned a grade of C.
1. The structure of these data resembles the structure of the data in the pricing example, but there are differences. (a) If we consider the satisfaction data as an experiment, with response Rating, are the data balanced?
Determination of Nominal, Ordinal, Interval, Ratio.Temperature is an example of what level of measurement.
twelve different video games showing substance use were observed and the duration of times of game play in seconds are
Suppose population standard deviation for those drinking regular coffee is 1.20 cups per day and 1.36 cups per day for those drinking decaffeinated coffee.
1000 students took a national aptitude test. as a result the mean score was 71 and standard deviation was 6. assuming
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