What is the change in the mean price pa share of stock

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Question: In early 2009. the economy was experiencing a recession. But how was the recession affecting the stock market? Shown are data from a sample of 15 companies. Shown for each company is the price per share of stock on January I and April 30 ( The Wall Street Journal. May I. 2009).

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a. What is the change in the mean price pa share of stock over the four-month period?

b. Provide a 90% confident interval estimate of the change in the mean price per share of stock. Interpret the results.

c. What %%us the percentage change in the mean price per share of stock over the four-month period?

d. If this same percentage change were to occur for the next four months and again fa-the four months after that, what would be the mean price per share of stock at the end of the year 2009?

Reference no: EM131456732

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