Question

11) The test scores of 32 students are listed in Problem 5. Find the third quartile, Q3 11) A) 80 C) 70 D) 99 B) 68 12) The test scores of 32 students are listed in Problem 5. Find first quartile, Q1 12) A) 32 D) 80 B) 56 C) 70 13) 13) The test scores of 32 students are listed in Problem 5. Find IQR= A) 43 C) 10 D) 38 B) 24 14) Compute the sample variance s2 =if a data set X- (X1, X2, X31 -(a, b, c) with, Variation of a --2, Variation of b-1, and Variation of c- 3, 14) D) 7 C) 14/3 A) 14 B) 0 15) if a data set X= (X1, X2, X3.X49 ). x=98, - 628. 15) Compute the sample variance s2 = D) 9 B) 2 C) 4 A) 3 with 16) (X1, X2, X3, X49 16) Compute the sample standard deviation, s= if a data set X x-98, 2- 628. C) 2 D) 4 B) 9 A) 3 End the mean of the data summarized in the given frequency distribution. 17) The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the Sample Mean waiting time (Weighted Average). Round your answer to one decimal place. 17) INumebr of Customers I Xmid = Waiting time (minutes) | fXmid = LL - UL 32 0 - 11 12 - 19 13 4. 20 - 27 D) 9.4 min C) 9.2 min. B) 7.0 min A) 13.5 min oblems 18 through 24, given a Whisker-and -Box Plot with values of its 5-number below: 7.7 8.7 5.5 18) Given a daat set of the weights (in pounds) of 30 newborn babies as X =(X1, X2, X3, ., X30) and 6.4 7.0 18) (%3D219. The Whisker-and-Box plot of the data set of the weights as shown in the figure above. Find Range = C) 2.3 D) 3.2 B) 1.3 A) 0.7 19) in pounds Given same information as one in Problem 18. Find the Variation of 8 %3D D) 0.7 C) -1.6 B) - 1.0 A) 1.0