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The General society survey asked a large number of people how much time they spent watching TV each day. The mean number of hours was 3,09 with a standard deviation of 2.87. Assume that in a sample of 41 techagers, the sample standard deviation of daily TV time is 2.0 hours, and that the population of TV watching times is normally distributed, Answer the following question when you test that the population standard deviation of TV watching times for teenagers is less than 2.87. Use the level of significance=0,01. (a) Determine if the alternative hypothesis is "right", "left" or "two-tailed" test. (input as "right", "left" or "two-tailed") (b) Find the test statistic. (c) Find the Critical Value (d ) State conclusion. There is (input as "sufficient" or "insufficient") to (input as "conclude" or "reject") that the population standard deviation of TV watching time is less than 2.87