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This Question: 8 pts 11 of 11 (10 complete) This Test: 60 pts possible Question Help You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals. A random sample of 31 gas grills has a mean price of $630.40. Assume the population standard deviation is $55.30. The 90% confidence interval is () Round to one decimal place as needed.) The 95% confidence interval is (). (Round to one decimal place as needed.) Which interval is wider? Choose the correct answer below. The 90% confidence interval O The 95% confidence interval ? Click to select your answer(s) javascript:doExercise(11); C w t 5:07 PM 8/3/2020 Type here to search hp pg up pg dn 19 144 112 insort sc delete home end 4- ese ? & backspace hum lock # O O 4 5 6 D - 00 9 home bg up W R tap E enter K S D F G H pause ON