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Acme Veggies conducted surveys in two cities to see what attitudes are like regarding organic vegetables and prices. In city A 75 out of 150 would pay more for organics while in B the result was 80 out of 200.
a) Test whether there is a difference between attitudes in the 2 cities. Use a 95% alpha.
b) What does your result say about attitude consistency across cities?
Jamie expects that a bulb will last for 400 to 500 days, what is the probability of an Acme bulb satisfying that?
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Determine and record how much of the math grade can be explained by the PE grade? How much of the Writing grade can be explained by the Reading grade?
Given the following data on hotel check-ins for a 6-month period:
Make a graph to visualize the problem and state, without doing the calculations, whether the p-value of the test
Using the results, describe the effect of an outlier or extreme value on the confidence interval.
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A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho = 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
Suppose the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with three children will have two boys and one girl.
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