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(a) What is the response variable?
(b) Is this an experimental study or an observational study? Explain your answer in at most 25-30 words.
(c) Perform a one-sample ANOVA.
(d) Is the assumption of equal variances reasonable?
(e) Is the assumption of normality reasonable?
(f) What are your conclusions in the context of the problem?
510 people were asked which of four fast food restaurant were their favorite. Determine if there is a preference for any one place over any other.
a random sample of 225 sat scores has a mean of 1500. assume that sat scores have a population standard deviation of
let b and c be independent random variables uniformly distributed over 07 and 03 respectively. what is the probability
An Excel Spreadsheet is reprinted below. Interpret the t-test results. Are they statistically significant?
Create a dot plot and a box plot to represent this data. If we create a sample by picking every 3rd data from the population, how would your answer to part a change? Show your work
A demonstration to verify that an item meets its reliability requirement is based on obtaining 5 successful tests. If the probability of a successful test is 0.9, find the probability that 10 tests will be required to pass the demonstration.
to test the efficacy of a health education program in reducing the risk of food-borne and water-borne diseases two
The study does provide sufficient evidence to support the claim that less than 75% of college student spend less than $250 per semester on textbooks.
A random samle of 12 college freshmen is obtained. The probability that exactly two of the 12 freshmen will not return for their sophmore year is?
Brake Pads- A brake pad manufacturer claims its brake pads will last for 38,000 miles. You work for a consumer protection agency and you are testing this manufacturer's brake pads.
There are twelve months. Given the cohort of 100 which starts the program, about how many are left after twelve months?
refer to the following table for questions 1 2 and 3. show all work. just the answer without supporting work will
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