If we collect observations on 100 people, and measure their IQ, the 100 observations is a) a sample

Which set of scores has the smallest variability?    A)11, 17, 31, 53 B) 5, 11, 42, 22 C) 145, 143, 145, 147  D) 27, 105, 10, 80

A sample was taken of the verbal test scores of 20 applicants to graduate school at a large midwestern university. Below are the scores. For convenience, the data are ordered. 280 310 340 350 380 400 420 420 420 430 510 510 520 520 600 610 670 720 750 770 (All answers should be exact calculations.) a) The median is b) The first quartile is c) The third quartile is d) The IQR is e) The lower fence is f) The upper fence is || g) Is/Are there any outlier(s)? Both 280 and 770 are outliers. The value 280 is an outlier. The value 770 is an outlier. Both 750 and 770 are outliers. There are no outliers. h) If 25 points were added to each score, what happens to the resulting standard deviation of the new scores? It cannot be determined. It would increase by 25. It would be unchanged. It would increase by 625. ○ It would increase by 5.

A researcher is interested in the eating behavior of rats and selects a group of 35 rats out 500 rats to be tested in a research study. The group of 500 rats is an example of a ______.  a.statistic b.population c.parameter d.sample

The shortest study time by Elaine was_________ hours.

None

Question 3-4 pls

A)In the two tables in the picture, in which examples are the samples representative of the statistical population? Which are not? B)For those samples that are not representative, identify the statistical population actually sampled.

7) What is the mean of the data shown in the accompanying table? Scores Frequency (X) () 25 3 20 2 11 5 10 4 A) 11 B) 15 C) 14.5 D) 16

A. P value=  b. Is the p-value >,< a  c. Accept, reject, or hypothesis