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1. As part of a promotion for a new type of cracker, free samples are offered to shoppers in a local supermarket. The probability that a shopper will buy a packet of crackers after tasting the free sample is 0.200. Different shoppers can be regarded as independent trials. Let be the proportion of the next n shoppers that buy a packet of the crackers after tasting a free sample. How large should n be so that the standard deviation of is no more than 0.01?
A. 4B. 16C. 1600
2. Suppose that the random variable X has a distribution with a density curve that looks like the following.
The sampling distribution of the mean of a random sample of 100 observations from this distribution will have a density curve that looks most like which of the following?
A.
B.
C.
Conduct an analysis of variance
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Calculate descriptive statistics for each stock and the S&P 500. Comment on your results. Which stocks are the most volatile? Calculate the value of beta for each stock.
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What is the probability that they all hit the target?
Distinct random variable
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