# Question: X 10 n 40 90 level We have given

x = 10, n = 40, 90% level.

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.

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.

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