We have given the number of successes and the sample size for a simple random sample from a population. In each case, do the following tasks. (a) Determine the sample proportion. (b) decide whether using the one-proportion z-interval procedure is appropriate. (c) If appropriate, use the one-proportion z-interval procedure to find the confidence interval at the specified confidence level. x=40, n=50,95% level. x=3, n=100,99% level.
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