1. log, 64 2. log, 625 3, log, 81
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- Use the following Boxplot to answer the following question: 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 The Range of the raw data for the above Boxplot is Select one: O a. 90 O b. 180 О с. 60 O d. noneShow your all calculationONLY DO NO. 3 2. Jeremy, a police researcher, is concerned that police officers may not be assigned to areas where they are needed. He wishes to find out whether there is a connection between the number of police officers assigned to a particular block and the number of violent incidents reported on that block during the preceding week. For ten different blocks (designated A through J), the number of patrolling officers assigned and the number of prior violent incidents reported are as follows: A B C D E F G H I J X: Violent incidents 7 10 3 9 8 0 4 4 2 8 Y: Officers assigned 6 9 3 10 8 1 4 5 2 7 a. State the null and alternative hypothesesb. Calculate the value of Pearson's r for the data recorded above.c. Test the statistical significance if the two variables are related.d. Use MS Excel to verify your answer (copy and paste the results on your answer sheet)e. State the Decision and Conclusion 3. Using the same data in #2a. Calculate Spearman's r.b. Which of the two…
- The manager of a local record store is interested in the effectiveness of an advertisingcampaign on sales. They randomly select 10 popular CDs (all in the Billboard top 100),and place an ad in the local school newspaper saying that the store has these (and more)in stock. They measure the sales of these 10 CDs for 1 week prior to the ad, and then for1 week after the ad. The number of CDs sold each week is presented below. Was there anincrease in the number of CDs sold after the ad? Conduct a 6-step hypothesis test.CD Numbersold beforeadNumbersold after adA 25 32B 18 24C 3 7D 42 40E 16 19F 20 25G 23 23H 32 35I 60 65J 40 43 Please solve using 6 steps hypothesis and solve in excelIn a rocent survey conducted, a random sample of adults 18 years of age or older living in a certain country were asked their reaction to the word socialism. In addition, the individuals were askod to disciose which political party they most associate with. Results of the survey are given in the table. Cormplete parts (a) through (c) below. Democrats Independents Republicans D Positive Negative 60 211 145 373 270 418 O B. H: Op =E, and Og =ER and O, =E H, At least one mean is different from what is expected. OC H: Political party and reaction are independent H, : Political party and reaction are dependent. OD. H: Political party and reaction are dependent. H,: Political party and reaction are independent. Compute the P-value. The P-value is (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answerb) Determine the rule in each of the following tables. 1. Input Output -2 -3 -1 1 2. 3. 6. 12 10
- At least 11 have ridden with a drunk driver P (r>15The figure to the right shows the results of a survey in which 1004 adults from Country A, 997 adults from Country B, 999 adults from Country C, 1000 adults from Country D, and 995 adults from Country E were asked whether national identity is strongly tied to birthplace. National Identity and Birthplace People from different countries who believe national identity is strongly tied to birthplace Country A 31% Country B 18% Country C 23% Country D 55% Country E 10% Construct a 95% confidence interval for the population proportion of adults who say national identity is strongly tied to birthplace for each country listed. The 95% confidence interval for the proportion of adults from Country A who say national identity is strongly tied to birthplace is (☐.) - (Round to three decimal places as needed.)Major League Baseball (MLB) consists of teams that play in the American League and the National League. MLB collects a wide variety of team and player statistics. Some of the statistics often used to evaluate pitching performance are as follows: ERA: The average number of earned runs given up by the pitcher per nine innings. An earned run is any run that the opponent scores off a particular pitcher except for runs scored as a result of errors. SO/IP: The average number of strikeouts per inning pitched. HR/IP: The average number of home runs per inning pitched. R/IP: The number of runs given up per inning pitched. The data in the Excel Online file below show values for these statistics for a random sample of 20 pitchers from the American League for a season. Construct a spreadsheet to answer the following questions.
- Construct a stem-and-leaf display, given the following data from a sample of midterm exam scores in finance: 50 65 90 70 90 50 50 89 72 O ... Fill in the stem-and-leaf display below. 8 (Do not use a comma to separate answers.)q7c Researchers watched groups of dolphins off the coast of Ireland in 1998 to determine what activities the dolphins partake in at certain times of the day ("Activities of dolphin," 2013). The numbers in table below represent the number of groups of dolphins that were partaking in an activity at certain times of days: Table: Dolphin Activity Activity Period Row Total Morning Noon Afternoon Evening Travel 6 6 14 13 39 Feed 28 4 0 56 88 Social 38 5 9 10 62 Column Total 72 15 23 79 189 Is there enough evidence to show that the activity and the time period are independent for dolphins? Test at the 1% level. (vii) Comparing p-value and α value, which is the correct decision to make for this hypothesis test? A. Reject Ho B. Fail to reject Ho C. Accept Ho D. Accept HA Enter letter corresponding to correct answer. (viii) Select the statement that most correctly interprets the result of this…A recent survey of college freshman asked if they had been to a movie or eaten at a restaurant during the past week. 816 responded. The following information was obtained: 266 had been to a movie, 337 had been to a restaurant and 387 had not been to a movie nor gone to a restaurant. How many of the college freshman that responded went to a movie or ate at a restaurant in the past week? Ⓒ 429 816 213 387