45. What is the 75th percentile? a. 10 b. 11 С. 12 d. 13
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.Find the coefficient of variation for the waiting times at Bank A and Bank BThe number of cavities that thirty-year-old Americans have had in their lifetimes is 8. Do twenty- average year-olds have a different number of cavities? The data show the results of a survey of 16 twenty-year-olds who were asked how many cavities they have had. Assume that the distrbution of the population is normal. 6, 12, 8, 6, 10, 6, 8, 11, 8, 8, 6, 7, 6, 10, 7, 11 What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: 2 Select an answer V 7v||Select an answerY c. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ?v f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that lor O The data suggest that the population mean number of cavities for twenty-year-olds is not significantly different from 8 at a = 0.10, so there is…
- For the given data sets 0, 50, 70, 100, 130, 140, 140, 150, 160, 180, 180, 180, 190, 200, 200, 210, 210, 220, 290, 340. Find the value of the 3 quartiles Q1, Q2 Q3. 신 신 A/For the following pairs of data points (10, 100), (8, 120), (5, 200), (4, 200), (10, 90), (7, 110) , and (6, 150) , the value of the coefficient of determination R ^ 2 is A. 0.8596 B. 0.7389 c. 0.9271 d. 0.58696. On Saturday Marcia rode her bicycle for a total 6 hours on the trail. She rode at a rate of 12 miles per hour. 2/1 Identiy the range of the data set. www..
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- A sample of 1000 observations taken from population-1 gave x, =290 . Another sample of size 1200 taken from population-2 yielded x,=396. Find the sample pooled proportion. O A. 0.6882 OB. 0.0957 OC.0.3118 O D.0.2146The data below shows the time intervals, in minutes, between two consecutive buses on the same route. 15,\ 13,\ 12,\ 18,\ 20,\ 19,\ 1215, 13, 12, 18, 20, 19, 12 Find the first, second, and third quartiles of the time intervals. A First quartile=12 and Third quartile=19\mathrm{First}\ \mathrm{quartile}=12\ \mathrm{and}\ \mathrm{Third}\ \mathrm{quartile}=19First quartile=12 and Third quartile=19 B First quartile=10 and Third quartile=15\mathrm{First}\ \mathrm{quartile}=10\ \mathrm{and}\ \mathrm{Third}\ \mathrm{quartile}=15First quartile=10 and Third quartile=15 C First quartile=15 and Third quartile=20\mathrm{First}\ \mathrm{quartile}=15\ \mathrm{and}\ \mathrm{Third}\ \mathrm{quartile}=20First quartile=15 and Third quartile=20 D First quartile=13 and Third quartile=19\mathrm{First}\ \mathrm{quartile}=13\ \mathrm{and}\ \mathrm{Third}\ \mathrm{quartile}=19First quartile=13 and Third quartile=19 (b) Part B…> Question 2 = 16 and STS x = 18.4 if the test is: Find the P-value (to 4 decimals) for a x test with d. f. a. Left tailed: b. Right tailed: c. Two-tailed: Submit Question tor MacBook Air 80 F3 B00 000 F2 11 F8 F4 F5 F6 F7 F9 2$ 4. & * 8 9- W E R T Y U 5 3.
