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An educational organization in California is interested in estimating the mean number of minutes per...

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An educational organization in California is interested in estimating the mean number of minutes per day that children between the age of 6 and 18 spend watching television per day. A previous study showed that the population standard deviation was 21.5 minutes. The organization selected a random sample of n = 200 children between the age of 6 and 18 and recorded the number of minutes of TV that each person watched on a particular day. The mean time was 191.3 minutes. If the leaders of the organization wish to develop an interval estimate with 98 percent confidence, what would be the upper and lower limits of the interval estimate? a. Approximately 187.76 minutes ----- 194.84 minutes b. About 141.21 ------ minutes 241.40 minutes c. Approximately 188.3 minutes -------- 194.3 minutes d. None of the above.

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