10. Data from the FBI revealed that of all the people arrested in the U.S. in 2020, 73% of them were male. Of the males, 7.5% were juveniles and of the females, 8.3% were juveniles. Let M represent males and J represent juveniles.
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- A market investigator. returns the following data of 10000 people 30 consulted: 8110 liked chocolates, 7520 liked toffee, Show that this information as it stands must be incorrect.Suppose 60 percent of the customers at Pizza Palooza order a square pizza, 80 percent order a soft drink, and 48 percent order both a square pizza and a soft drink. Is ordering a soft drink independent of ordering a square pizza?Rita has two ways to travel from her home in Norco to her office in Los Angeles. One is to go via the 10 Freeway, and the other is to go via 60 Freeway. In order to determine which way she should travel on a daily basis, Rita has recorded the travel times for samples of twelve trips via the 10 Freeway and twelve trips via the 60 Freeway. The following table gives the travel times (in minutes) for the twenty-four trips. Travel times in minutes 10 Freeway 66, 70, 73, 71, 72, 71, 65, 74, 69, 71, 75, 71 60 Freeway 77, 72, 71, 68, 74, 80, 70, 78, 76, 71, 68, 67 Assume that the two populations of travel times are normally distributed and that the population variances are equal. Can we conclude, at the 0.01 level of significance, that the mean travel time via the 10 freeway, μ1, is different from μ2, the mean travel time via the 60 freeway? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and…
- A survey of 125 freshmen business students at a focal university produced the results listed below, How many students took history and science. buf not music 25 took history: 22 took science 23 took musiC 19 took history but not science 10 took science and music 12 took history and music 4 took all threeIn a college of 100 students, a financial aid survey was done. The three financial aids were Government grants, Private Scholarships and College aids. 49 received government grants 55 received private scholarships 43 received college aid 8 received funds from all three 23 received government grants and private scholarships 18 received government grants and college aid 28 received private scholarship and college aid i. Represent the data in a Venn Diagram. ii. Find out the number of students who didn’t receive any of the scholarships.A company wants to study the effects a new drug has on alleviating pain. Some patients at doctor’s office are selected to be in the study. The patients will be randomly assigned to take the new drug or the old drug. They will be monitored to see when the pain goes away. How many treatments are there and what are they? A. Two and which Drug received B. One and which drug received C. Total number of Patients D. None.This is an obesevational study.
- 4. The table shows the number of students in four subjects of Electronics Engineering Course and their average scores in test. If the overall average scores of the four subjects are 82. 94, find the approximate number of students taking Mathematics. SUBJECTS Number of Students Average Score Math 80 Electronics 200 85 GEAS 600 90 EST 400 752. Review Ethan's work below. What mistakes did Ethan make? Sample Student Work: Ethan 3x=y 4x ty = 70 3x+y=0 4x+y=20 7x + 2y = 70 x=53 7+5 = 35 351-2y = 70 2y = 35 X=6 = 17-5- must be a whole number 7x6 = 42 42+2y = 70 2y = 28 y = 14C. -2.3418 O d. None of the answers is correct O e. -2,3568 QUESTION 12 The Global Business Travel Association (GBTA) reported the domestic airfare for business travel for the current year and the previous year. Below is a sample of 6 flights with their domestic airfares (in $) shown for both years. Suppose GBTA wished to see if the average airfare for the current year is greater than the average airfare for the previous year at a=.025. Current 333 733 534 430 233 638 Previous 321 725 530 433 223 627 For the hypothesis stated above, what is the P-value? O a. 01 < P-value <.025 Ob. .001 < P-value <.005 O c. 95 < P-value < .975 O d. None of the answers is correct O e. .025 < P-value < .05 QUESTION 13 Save All Answer Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Pro DD F9
- The table below contains data from a study of two airlines - Sunshine Airlines & Comfort Airlines - which fly from BWI to Shore City, FL. If one Airline is selected, find P (on time and Comfort Airlines). Number of Flights Arriving on Time Number of Flights Arriving Late Sunshine Airlines 33 5 Comfort Airlines 43 6The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains.t One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for the Sun Coast times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The following data show the meal prices ($) obtained for the 24 restaurants sampled. Italian Seafood Steakhouse $12 $16 $24 13 18 19 15 17 23 17 26 25 18 23 21 20 15 22 17 19 27 24 18 31 Use a = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. State the null and alternative hypotheses. O Ho: ralian * lseafood * lsteakhouse H: talian = lSeafood = ASteakhouse O Ho: Not all the…Indiana has a population of about 7 million people and Ohio about 12 million. Is it possible for there to be a poll where over 50% of Hoosiers say "yes", over 50% of Ohioans say "yes", but over 50% of all residents of both states say "no"? If no, explain why not. If yes, give an example of how that could happen.