QuestionThis question: 1 point(s) possib
Given below are the number of successes and sample size for a simple random sample from a population. $$x=6, n=40,90 \% \text { level }$$ 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. d. If appropriate, find the margin of error for the estimate of $p$ and express the confidence interval in terms of the sample proportion and the margin of error. a. $\hat{p}=$ $\square$ (Type an integer or a decimal. Do not round.) b. Is the one-proportion z-interval procedure appropriate? Select all that apply. A. The procedure is appropriate because the necessary conditions are satisfied. B. The procedure is not appropriate because $n-x$ is less than 5 . C. The procedure is not appropriate because the sample is not à simple random sample. D. The procedure is not appropriate because x is less than 5 . c. Select the correct choice below and, if necessary, fill in the answer boxes within your choice. A. The $90 \%$ confidence interval is from $\square$ to $\square$ . (Round to three decimal places as needed. Use ascending order.) B. The one-proportion z-interval procedure is not appropriate. d. Select the correct choice below and, if necessary, fill in the answer boxes within your choice. A. The margin of error is $\square$ . The $90 \%$ confidence interval is $\square$ $\pm$ $\square$ .