Both 50% marksmen, Cj and Jc agree to a firefight in which they alternate shots until one of them is hit. How likely is it that the first shot will win?
Q: A- Explain the following • Random Experiments. • The Variance of data. Bayes' Theorem.
A: 1. Random Experiments: A Random Experiment is an experiment, trial, or observation that can be…
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A: given data n1 = 116 x1 = 80p^1 = x1n1 = 80116 = 0.6897 n2 = 137 x2 = 91 p^2 = x2n2 = 91137 =…
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A: here given , S = success F = Failure
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Q: µ = 43 and s = 8, what is the z score ? Margret X = 43, z = Katie X = 55, z = Dorinda X = 47, z =…
A: Given that µ = 43 and s = 8 Formula for Z-score Z=(X-µ)/s
Q: AN OUTDOOR HOT DOG VENDOR SELLS AN AVERAGE OF 60 HOT DOGS PER DAY IN DRY WEATHER AND AN AVERAGE OF…
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Q: Part B. The absolute risk of getting diabetes in the UK if you are an obese adult is 63.4%. The…
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Q: If UV = x + 13 and RT = x - 37, what is the value of x? V R %23
A:
Q: 55% of high
A: Probability of participating = 0.55 Probability of playing in NCAA given participating = 0.05
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Q: How do I solve c, d, and e with the given data?
A: From the given box plot we find the solution for C,d,e.
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A: We have to perform test for difference in two proportion.
Q: Answer all and explain how it is solved. Show hand written solutions.
A:
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- An article in the Archives of Internal Medicine reported that in a sample of 224 men, 73 had elevated total cholesterol levels (more than 200 milligrams per deciliter). In a sample of 232 women, 44 had elevated cholesterol levels. Can you conclude that the proportion of people with elevated cholesterol levels differs betwen men and women? Use the a= 0.05 level.Brandon's score in the high jump at a track and field event showed that he was only able to jump higher than 27% of his competitors. Find the z score for Brandon's high jump score.In a statistics activity, students are asked to spin a penny and a dime and determine the proportion of times that each lands with tails up. The students believe that since a dime is lighter, it will have a lower proportion of times landing tails up compared to the penny. The students are instructed to spin the penny and the dime 30 times and record the number of times each lands tails up. For one student, the penny lands tails side up 18 times, and the dime lands tails side up 20 times. Let PD = the true proportion of times a dime will land tails up and pp = the true proportion of times a penny will land tails up. Which of the following is the correct standardized test statistic and P-value for the hypotheses, Ho: Po-Pp= 0 and H₂: Po-Pp<0?
- Complete the State, Plan, Do, Conclude for this problem. A popular blog reports that 66% of college students log in to Instagram on a daily basis. The Dean of Students at a certain university thinks that the proportion may be different at her university. She polls a simple random sample of 152 students, and 57 of them report that they log in to Instagram daily. Using α= 0.05, can you conclude that the proportion of students who log in to Instagram daily is more than 0.66?An epidemiologists is studying two populations that have recently had an outbreak of a disease with similar symptoms. In one population of 600 people, 450 of them became infected and 3 of them died. In the other population of 200 people, 20 were infected and 10 died. Did the two towns have an outbreak of the same disease? Defend your answer. Use prevalence and mortality rates to help you.Elizabeth has taken 3 exams so far for her sociology class. The first test is worth 35% of her grade, and she scored a 95. Her second and third tests are each worth 20% of her grade. She scored an 80 on test 2 and a 74 on test 3. What is her weighted average score in class so far?
- 6. 4p² + 7q³ if p = -3 and q = -2 %3D %3D 54Luke's teacher has assigned each student in his class an online quiz, which is made up of 10 multiple-choice questions with 4 options each. Luke hasn't been paying attention in class and has to guess on each question. However, his teacher allows each student to take the quiz three times and will record the highest of the three scores. A passing score is 6 or more correct out of 10. We want to perform a simulation to estimate the score that Luke will earn on the quiz if he guesses at random on all the questions. The dotplot shows Luke's simulated quiz score in 50 trials of the simulation. Doug is in the same class and claims to understand some of the material. 1 N 10000 2 …………………………………at 3 …………………… 4 3 ……………………●●●●●▬ 5 Simulated quiz score -●●●●● 10 6 7 If Doug scored 8 points on the quiz, is there convincing evidence that he understands some of the material? Why or why not? Yes, it is unlikely that Doug would score higher than 6 out of 10 based upon randomly guessing the answers. Since…Sean is the star shortstop for his baseball team. He notices that his team typically scores about half as many runs as he has singles, and that his team is about 10% more likely to win a game for each run scored. How likely is it that the team wins if he has 6 singles? How many singles did Sean hit if the team was 70% likely to win?
- If I got 8 out of 12 answers the same as a classmate, is it possible for me to get no answers correct and him to get 75% correct?Night Owls proportion of MSU students who regularly sleep less than 8 hours each night is less than the value reported by the MSU psychologist. She randomly selects 215 students and asks them, "Do you regularly sleep less than 8 hours each night?" She finds that 77 of the 215 students answered "yes" to the question. A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours each night. Cindy believes that the actual 1. Which one of the following statements about the number 40% is correct? A. It is a sample statistic. B. It is a standard error. C. It is a margin of error. D. It is a claimed parameter. 2. Choose the null and alternative hypotheses Cindy should use to test her theory. А. Но : р %3D 0.4, Нд : р+0.4 В. Но : р %3D 0.4, На : р 0.4 3. If you assume that the observations in the sample are independent, what is the smallest value the sample size could be to meet the conditions for this hypothesis test? OA. 28 В. 10 C. None of the above D. 20 Е. 77 OF.…A random sample of BYU-Idaho students was surveyed and asked if they were in favor of retaining the penny as a form of currency in the United States. Out of the 116 women surveyed, 80 said that they were in favor of retaining the penny as a form of currency. Of the 137 men surveyed, 91 said that they were in favor of retaining the penny. Difference = Women - Men The picture below is the question. Use the information above to help.
