Describe a procedure to physically generate random numbers on the interval [0, 1] with two-digit accuracy.
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Q: a) A' b) AUB
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- The weights of all the turkeys sold in Fairfax County in 2020 were recorded in the data set “Fairfax Turkey Weights” found in the table with the column labeled "Weight". The weights are presented in pounds. There are 235,428 turkeys in this population. Does the mean calculated in the table with the column labeled "Sample (Weight)" come from a sampling distribution that is approximately Normal? Check all three conditions of the Central Limit Theorem using one complete sentence for each condition to answer this question.Suppose population 1 consists of all students who picked up all the tests they completed prior to taking the final exam. Suppose population 2 consists of all students who had one or more tests that they completed that were not picked up prior to taking the final exam. Based on years of grading final exams and observing grades, STAT 210 instructors conjecture that the mean final exam grade for all students who picked up all their tests is higher than the mean final exam grade for all students who had one or more tests that were not picked up. A simple random sample of 56 students who picked up all tests they completed was selected, and the mean score on the final exam for this sample of students was 83 with a standard deviation of 10.4. An independent simple random sample of 51 students who had one or more tests that were not picked up was selected, and the mean score on the final exam for this sample of students was 67 with a standard deviation of 24.2. Both distributions are skewed…Indicate how to show the sum of independent normal random variables is a normal random variable using moment generating functions
- Q 4: Mr. Ahmed who is a manager at PVR Multiplex Muscat has conducted a survey to investigate the number of people visited the theatre in the last 30 days. The number of people visited the theatre in the last 30 days are: 30, 36, 39, 37, 36, 54, 38, 33, 37, 33, 33, 36, 32, 48, 42, 38, 36, 35, 30, 33, 39, 37, 33, 36, 30, 39, 44, 32, 44 and 50. Find out the grouped frequency distribution using 5 classes. Which graph will be suitable to present the grouped frequency distribution? Give reasons to your answer Cumulative frequency and relative frequency are same. Discuss criticallyA researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 35 adult Americar sample proportion of adults who respond yes, is approximately normal, how many more adult Amencans does the.researcher ne (a) 10% of all adult Americans support the changes (b) 15% of all adult Americans support the changes (a) The researcher must ask more American adults. (Round up to the nearest integer) (b) The researcher must ask more American adults (Round up to the nearest integer.)The sample space of a random experiment is the set of positive real numbers, $={x 1 x >0} Define events A and B as A={x | x > 40} and B={x | x < 65). Describe each of the following events: a) A' b) AUB
- Suppose population 1 consists of all students who picked up all the tests they completed prior to taking the final exam. Suppose population 2 consists of all students who had one or more tests that they completed that were not picked up prior to taking the final exam. Based on years of grading final exams and observing grades, STAT 210 instructors conjecture that the mean final exam grade for all students who picked up all their tests is greater than the mean final exam grade for all students who had one or more tests that were not picked up. A simple random sample of 56 students who picked up all tests they completed was selected, and the mean score on final exam for this sample of students was 83 with a standard deviation of 10.4. An independent simple random sample of 51 students who had one or more tests that were not picked up was selected, and the mean score on the final exam for this sample of students was 67 with a standard deviation of 24.2. Both distributions are skewed…Assume that arrivals of cars at a gas station can be modeled by a Poisson process with rate 2 cars per hour. What is the probability that one has to wait at least 3 hours for the arrival of 3 cars?The durability of a plastic product is directly affected by the hardness of the plastic types used. Plastic hardness which is measured with the Durometer Hardness test goes between 0 and 100. A higher number represents a harder plastic. A comparative test is conducted to investigate the quality of the plastic based on their hardness from 3 different factory sources. The test is conducted with 6 different plastic types acquired from each factory source. The types of plastic are sorted based on the nature of hardness in ascending order.
- A complete enumeration of all items in the ‘population’ is known asn a big university with over 10,000 students, 20% of all students work full time. A random sample of 100 students is selected from the university. Let X denote the number of students who work full time in the sample. b) Find ?(? = 20) c) Find ?(? ≤ 20) d) Find ?(? ≥ 20) Can you explain how you got them using work?Use normal approximation with the continuity correction to estimate the probability of passing a true/false test of 68 questions if the minimum passing grade is 65% and all responses are random guesses.