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- c) A skilled typist, on routine work, kept a record of mistakes made per day during 300 workers Mistakes per Day 1 3 4 6 No. of days 143 90 42 12 9.A survey of 1,200 tourists visiting Orlando was taken. Of those surveyed: 255 tourists had visited the Magic Kingdom 270 tourists had visited LEGOLAND 251 tourists had visited Universal Studios 58 tourists had visited both the Magic Kingdom and LEGOLAND 89 tourists had visited both the Magic Kingdom and Universal Studios 66 tourists had visited both LEGOLAND and Universal Studios 26 tourists had visited all three theme parks How many tourists had not visited any of these three theme parks?10 assume that the number of production defects is 26 and that 12 of these are classified as major defects, 7 are classified as design defects, and 11 were neither major defects nor design defects. How many of the design defects were major?
- . A sequence of resistors or other components wired into a circuit one after the other?Of 100 students, 27 can speak French F, 36 can speak German G, and 14 can speak both French and German. How many students speak neither French nor German? Oa. 49 O b.35 O c. 51 Od. 63 O e. 14. Among a group of 100 book enthusiasts: 40 people like mystery novels, 60 like science fiction novels, 30 likeromance novels, and 10 like both mystery and romance novels. While all surveyed liked at least one genre ofnovel, it has been established that none of the people like both science fiction and romance novels. Howmany people like both mystery and science fiction novels?
- ONLY 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 scatterplot, the more dispersion there is in the points, the _____ the association. a. stronger b. weaker
- A survey of 1,059 tourists visiting Orlando was taken. Of those surveyed: 291 tourists had visited the Magic Kingdom 290 tourists had visited LEGOLAND 298 tourists had visited Universal Studios 99 tourists had visited both the Magic Kingdom and LEGOLAND 66 tourists had visited both the Magic Kingdom and Universal Studios 51 tourists had visited both LEGOLAND and Universal Studios 12 tourists had visited all three theme parks How many tourists had not visited any of these three theme parks?In 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 AnswerA survey of 1,046 tourists visiting Orlando was taken. Of those surveyed: 254 tourists had visited the Magic Kingdom 263 tourists had visited LEGOLAND 57 tourists had visited both the Magic Kingdom and LEGOLAND 55 tourists had visited both the Magic Kingdom and Universal Studios 55 tourists had visited both LEGOLAND and Universal Studios 31 tourists had visited all three theme parks 82 tourists did not visit any of these theme parks How many tourists only visited the Universal Studios (of these three)?
