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Suppose that we want to estimate the proportion of recipes in the Better Homes and Gardens New Cook Book that do not involve animal products. We plan to take a simple random sample of the N=1251 kitchen-tested recipes, and we want to use a 99% confidence interval. How large of a sample do we need?
N=population size
Confidence interval=99%
Testing for Population mean - Can the difference in average educational level between the sample and the nation be explained by chance variation?
Does the regression equation account for a significant portion of the variance in GPA? Use ∝ = .05 to evaluate the F - ratio.
A marketing survey is taken among fast food customers to determine their preference for hot dogs or pizza. Of the 200 respondents selected,
Add titles and modify the default colors, fonts, etc., as you judge appropriate to make the scatter plot effective. (b) Describe the relationship (if any) between X and Y. Weak? Strong? Negative? Positive? Linear? Nonlinear?
applying the rule 68-95-99.7 rule. when designing the placement of a cd player in a new model car engineers must
What is/are the advantage(s) of conducting a study with three or more levels of independent variables?
Show your work (either your hand calculations or your statistical program output). You can either scan your work and submit it as a low-resolution graphic, type your answers directly into the document, or cut and paste your work into a Word file.
If she has chosen the first weeks rides, how many ways can she choose four more different rides for the second week? Assume that order does not matter.
this exercise ilustrate that poor quality can affect schedule and cost. a manufacturing process has 100 customer order
question is the gender of a nurse related to the specialty he or she chooses?? a hospital administrator counted the
In an Asian country with a population of 6 million people, 60,000 deaths occurred during the year ending December 31, 1995. . What was the cause-specific mortality rate from cholera in 1995?
question two concentric circles are such that a chord of the larger 36 cm long is trisected by the smaller. the sum of
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