Question: Go to www.pearsonhighered.com/sullivanstats to obtain the data file 9_1_33 using the file format of your choice for the version of the text you are using.

Go to www.pearsonhighered.com/sullivanstats to obtain the data file 9_1_33 using the file format of your choice for the version of the text you are using. The data represent the daily (for example, Monday to Tuesday) movement of Johnson & Johnson (JNJ) stock for 200 randomly selected trading days. "Up" means the stock price increased for the time period. "Down" means the stock price decreased (or was unchanged) for the time period. Each observation is a random sample of time periods. Construct and interpret a 95% confidence interval for the proportion of days JNJ stock increases?

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