In a survey of 3,050 adults aged 57 to 85 years, it was found that 83.5% of them used at least one prescription medication. Construct a 90% confidence interval estimate of p, the percentage of all adults aged 57 to 85 years who use at least one prescription medication. (Enter your answers as percentages rounded to one decimal place: odd a trailing zero as needed.)
The 90% confidence interval estimate is type your answer… % < p < type your answer... | 1 point # In a study of fast food drive-through accuracy. Restaurant A had 247 accurate orders and 53 that were not accurate. Construct a 95% confidence interval estimate of p. the proportion of all orders that are inaccurate. (Round your answers to three decimal places; add trailing zeros as needed. ) The 95% confidence interval estimate is type your answer... < p < type your answer... | 1 point & Suppose that during the study described in Exercise 2, Restaurant B's 95% confidence interval estimate of the proportion of inaccurate orders was 0.155 < p < 0.237. Compare this result to the interval you calculated for Restaurant A. Does there appear to be a statistically significant difference between Restaurant A's proportion of inaccurate orders and Restaurant B's? O Since the two confidence intervals overlap, there appears to be no significant difference between their proportions of inaccurate orders. O Since the upper confidence limit of Restaurant B's interval is higher than both the lower and upper limits of Restaurant A's interval, Restaurant B has a significantly