The accompanying data represent the daily​ (for example, Monday to​ Tuesday) movement of Johnson​ & Johnson​ (JNJ) stock for 61 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. Construct and interpret a 95​% confidence interval for the proportion of days JMJ stock increases. 30 ups and 31 downs.

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