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Interval estimates were produced for amount paid for travel by a state's Congressmen in the years 2000 to 2005. Suppose the regression equation for the relationship between trip length x in days and amount paid y in dollars is 9 = 561 + 1,158)(. (a) Which interval should be narrower? O The interval estimate of mean amount for all 5-day trips taken by the larger population of Congressmen. O The interval estimate of amount paid for an individual 5-day trip by a Congressman in the larger population. (b) How much higher should the center of the interval estimates be for the amount paid for a 10-day trip compared to the amount for a 5-day trip? (c) Note that the mean trlp length was approximately 5 days. Which confidence interval should be narrower? O The interval estimate of mean amount paid for all 10-day trips. 0 The interval estimate of mean amount paid for all 5day trips. (d) Using the predicted value )7 = 7651 + 1,158(10) = 10,919, the spread s = 3,559, and the sample size n = 40, nd the interval 7 d: 2 . (Round your answers to the nearest whole number.) ( .l ) (e) Explain why the interval you constructed in part ((1) is not very accurate as a 95% condence interval for the mean amount paid for a 10-day trip. 0 The interval is not very accurate because the sample size is too small. 0 The interval is not very accurate because 10 is too close to the mean trip length, 5 days. 0 The interval is not very accurate because 10 is too far from the mean trip length, 5 days. 0 The interval is not very accurate because the standard deviation is large. Need Help