Moving to another question will save this response Quinto Question 19 4 points Save As Last year, KBS's share of the 6 pmnews audience was approximately equal to, but not greater than 25 percent. This son's advertising department beves the current audience shari higher than last year's 25 percent share. In an attempt to substantiate this but the station surveyed a random sample of 400 pm viewers and found that 148 watched KBS Clothe appropriate test statistic to test the hypotheses -5.31 321 4.69 5.31 Question 19 of 25 Moving to another question will save this response MacBook Air A Moving to another question will save the response Qunho 20 of 25 Question 20 4 points Answer A researcher wishes to determine the difference in two population means. To do this, she randomly sales tems from each population and computea confidence interval. The sample from the first population produces a mean of 780 with a standard deviation of 240. The sample from the second population produces a man of 890 with a standard deviation of 280 Assume that the values are normal distributed in each population. The point estimate for the difference in the means of these two populations 0-110 40 40 DO 240 Question 20 of 25 Moving to another question will have this response MacBook Air ml ate FE 946 5 & 7 6. 8 9 00 O U R Y T HP