7. What is the median of 26, 30, 24, 32, 32, 31, 27, and 29? 8. What is the range of values for a coefficient of correlation? 11. what is true about normal distribution? -it is assymetrical -it has two modes -the points of the curve meet at the x axis z=-3 and z=3 - the mean, median and mode are all equal 12. group of women tried five brands of fingernail polish and ranked them according to preference. What level of measurement is this? 13. Consider the following regression analysis between sales (Y in $1,000) and social media advertising (X in dollars). = 55,000 + 7X The regression equation implies that an: -increase of a dollar in advertising is associated with an increase of $62,000 sales - increase of $1 in advertising is associated with an increase of $7,000 in sales -increase of $7 in advertising is associated with an increase of $7,000 in sales -increase of $1 in advertising is associated with an increase of $7 in sales 14. The first card selected from a standard 52-card deck was a king. If it is returned to the deck, what is the probability that a king will be drawn on the second selection? -12/13 or 0.923 -1/4 or 0.25 -1/13 or 0.077 -1/3 or 0.33 19. You perform a hypothesis test at the .05 level of significance. Your computed p-value turns out to .042. What is your decision about the hypothesis? -you would accept Ho -you would accept Ho if it is a two tailed test, but reject Ho if it is a one tailed test -you would reject Ho - you cant render a decision unless you know the computed test statistic 20. The mean of a normal distribution is 400 pounds. The standard deviation is 10 pounds. What is the probability of a weight between 415 pounds and the mean of 400 pounds? -0.3413 -0.192 -0.4332 -0.5000 22. When statisticians analyze sample data in order to draw conclusions about the characteristics of a population, this is referred to as: 27. In a distribution, the second quartile corresponds with the __________. -mean -variance -mode -median 28. An example of a qualitative variable is _________________. -color of ink in pen -number of children in a family -weight of a person -miles between oil changes