Put the following in order from narrowest to widest interval. Assume the sample size and sample proportion is the same for all four confidence intervals. (a) 84% confidence interval (b) 93% confidence interval (c) 92% confidence interval (d) 99% confidence interval Choose the correct answer below. OA. (d), (c), (b), (a) OB. (a), (b), (c), (d) OC. (d), (b), (c), (a) OD. (a), (c), (b), (d) C

A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 1.5% margin of error at a 99% confidence level, what size of sample is needed? Enter an integer or decimal number [more..]

You recently sent out a survey to determine if the percentage of adults who use social media has changed from 56%, which was the percentage of adults who used social media five years ago. Of the 2335 people who responded to survey, 1725 stated that they currently use social media.a) Use the data from this survey to construct a 93% confidence interval estimate of the proportion of adults who use social media. Record the result below in the form of (#,#)(#,#). Round your final answer to four decimal places.

Two intervals are given, A and B, for the same value of the explanatory variable. A: 86 to 114; B: 89 to 111; (a) Which interval is the confidence interval for the mean response? Which interval is the prediction interval for the response? (b) What is the predicted value of the response variable for this value of the explanatory variable? Enter the exact answer. The predicted value is eTextbook and Media Hint Save for Later Attempts: 0 of 08 直 0 e to search PrtScn Home F1 F2 F4 F5 & V %23 %2$ 2 3. 4. 5. 9- 7. 08.