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Question: A sample of the reading scores of 35 sixth graders has a mean of 82. If the 95% confidence interval for the population mean of the reading scores of all fifth graders is between 77 and 87, then which among the following choices represents the 99% confidence interval? Steps to derive 1 As the degree of confidence increases, the confidence interval becomes wider.2 Choice 1: 77 - 74 < μ < 92 - 873 Choice 2: 77 - 79 < μ < 85 - 874 Choice 3: 77 - 77 < μ < 91 - 875 Choice 4: 77 - 75 < μ < 89 - 876 So, 75 < μ < 89 is the only choice that represents the 99% confidence interval.Hence the right answer is Option D Click Here To Go Back Kay put a 6 cm by 4 cm picture on a photocopier and doubled its length and halved its widt.. To correct the misleading graph, where should the scale start from?.. Which of the following scales best suits the data shown?.. Which of the following scales best suits the data shown?.. Which of the following is the one of faces of a cube?.. 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