Question 1 Not yet answered Marked out of 4 Flag question Keeping our brains and memories sharp is certainly on our minds these days. In fact, 34 percent of Americans say they've noticed signs of forgetfulness significant enough to worry them, in a March 2022 Consumer Reports nationally representative survey of 2,116 adults. The number 34% is... Select one: a. is evidence of bias because it is the Consumer Reports survey. O b. is a parameter because it represents the population O c. is a statistic because it represents the sample O d. is a sampling distribution because they took a sample of 2,116 adults Next page Quiz navigation 12 3 4 5 6 7 8 9 10 9 10 11 12 13 14 15 6 17 Finish attempt ... Time left 1:29:29 MacBook Air esc 20 888 F1 F2 F3 F4 F5 F6 F7 @ # $ % 2 3 4 5 6Question 2 Not yet answered Marked out of 4 Flag question If we take many samples from the same population, we expect Select one: . a. Sampling distribution to becomes more condensed and confidence interval becomes narrower b. Sampling distribution to becomes less condensed and confidence interval becomes narrower O c. Sampling distribution to becomes more condensed and confidence interval becomes wider . d. Sampling distribution to becomes less condensed and confidence interval becomes wider Previous page Next page Quiz navigation 1 2 3 4 5 6 7 8 9 1 11 2 13 14 15 16 17 Finish attempt ... Time left 1:29:18 MacBook Air esc 20 F1 F2 F3 F4 F 5 F6 F7 @ # & 2 3 4 5Question 3 Not yet answered Marked out of 4 Flag question A 2021 study of high schoolers and college students found that 93% do not get the recommended amount of sleep. This is an increase of the previously established 77% only 20 years ago. The number 77% is Select one: O a. statistic O b. parameter O c. proportion O d. variance Previous page Next page Quiz navigation 41 91 91 6L 81 21 41 OL 6 8 1 9 9 9 9 2 1 Finish attempt ... Time left 1:29:09 MacBook Air esc 20 F1 F2 F3 F4 F5 F6 F7 @ # % 2 3 4 5 6