Hi, kindly help me with how to solve this problem. I've seen some solutions, but I still don't understand :/
A sample of the reading scores of 35 fifth-graders has a mean of 82. The standard deviation of the sample is 15.a) Find the 95% confidence interval of the mean reading scores of all fifth-graders.b) Find the 99% confidence interval of the mean reading scores of all fifth-graders.c) Which interval is larger? Explain why
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