Please please how to write if based on the following tables, identify the test, interpret the results and report them in an academic style. You do not need to interpret the assumptions. Please show me how to interpret.
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A:
Please please how to write if based on the following tables, identify the test, interpret the results and report them in an academic style. You do not need to interpret the assumptions. Please show me how to interpret.
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- A sample of 70 students need to be selected from 500 freshmen from college of science to start the study. These freshmen are from three different department. Department of Mathematics and statistics have 150 freshmen, Department of Biology have 250 and Department of Nutrition and Dietetics have 100. (a) What sampling technique we will use to choose the 70 students needed on the study? (b) Solve the three strata. (c) Suppose the researchers decided to down the sample to 50, how many freshmen will be needed now to the Department of Nutrition and Dietetics?The members of a rock climbing club can use an indoor rock climbing facility anytime they wish as part of their club membership. As it creates a new budget, the club decides to investigate how often the members use the indoor climbing facility. Then it will decide whether to increase the budget for this facility. Manuel and Gretchen are in charge of gathering this information, so they survey the members of the club. Each person will administer the survey to 15 randomly selected members and record how many days in the past month those members used the indoor facility. Their data is shown in the table. Number of Days Member Used Facility Last Month Manuel Gretchen 3 22 6 4 8 7 11 8 12 12 8 15 6 10 3 7 10 9 5 6 14 13 9 3 7 8 10 10 8 10 Use the graphing tool to create a histogram of Gretchen’s data. Use eight bins for your histogram.The population of Metroville was 3,187,463 on June 30, 2013. During the period January 1 through December 31,2013, a total of 4,367 city residents were infected with HIV. During the same year, 768 new cases of HIV were reported. Calculate the prevalence per 100,000 population and incidence per 100,000 population.
- White Rock is trying to determine an acceptance sampling plan for parts Y500 and P2000, both of which are purchased from suppliers . For part P2000, management would like to be 95% sure of rejecting shipments that have more than 3% defectives, but wants to accept shipments with less than 1% defectives 90% of the time. Answer each of the following questions. For each question, use at least four decimal places when doing your calculations, but then ROUND OFF your answer to the number of decimal places specified for each question. What is the implied AQL for part P2000 based on the information given (round to 2 decimal places) ? What is the implied LTPD for part P2000 based on the information given (round to 2 decimal places) ? What is the implied probability of a Type II error for part P2000 based on the information given(round to 2 decimal places) ?A school has 650 students. Each student studies one of Analytical Chemistry or Health Care or Biochemistry or Biostatistics and Epidemiology. The table shows the number of students who study each of these courses. An inspector wants to look at the work of a stratified sample of 70 of these students. Find the number of students studying each of these courses that should be in the sample. Courses Number of Students Analytical Chemistry 145 Health Care 121 Biochemistry 198 Biostatistics and Epidemiology 186A consumer-testing agency wants to evaluate the claim made by a manufacturer of discount tires. The manufacturer claims that its tires can be driven at least 35,000 miles before wearing out. To determine the average number of miles that can be obtained from the manufacturer’s tires, the agency randomly selects 60 tires from the manufacturer’s warehouse and places the tires on 15 cars driven by test drivers on a 2-mile oval track. The number of miles driven (in thousands of miles) until the tires are determined to be worn out is given in the following table. Car Miles Driven 1 25 2 27 3 35 4 42 5 28 6 37 7 40 8 31 9 29 10 33 11 30 12 26 13 31 14 28 15 30 Average 31.47 Standard 5.04 Agency would like to know if the manufacturer’s claim is false. Carryout an appropriate hypothesis test (use 1% significance level). Check any assumptions you think are relevant before doing the text.
- The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Step 1 of 2: Suppose a sample of 333 tenth graders is drawn. Of the students sampled, 260 read above the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 333 tenth graders is drawn. Of the students sampled, 260 read above the eighth grade level. Using the data, construct the 80% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level. Round your answers to three decimal places.The University of the East Europe is interested in the overall performance of its studentsin the academic year 2020/2021. There were 1460 students registered for this academicyear. The University decides to select a sample of 150 students from each of the 5faculties- Science, Medicine, Law, Social Science and Humanities in proportion to thenumber of students in each faculty.A consumer testing agency wants to evaluate the claim made by a manufacturer of discount tires. The manufacturer claims that its tires can be driven at least 35,000 miles before wearing out. To determine the average number of miles that can be obtained from the manufacturer’s tires, the agency randomly selects 60 tires from the manufacturer’s warehouse and places the tires on 15 cars driven by test drivers on a 2-mile oval track. The number of miles driven (in thousands of miles) until the tires are determined to be worn out is given in the following table. Car 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 n y s Miles Driven 25 27 35 42 28 37 40 31 29 33 30 26 31 28 30 15 31.47 5.04 a. Place a 99% confidence interval on the average number of miles driven, m, prior to the tires wearing out. b. Is there significant evidence (a 5 .01) that the manufacturer’s claim is false? What is the level of significance of your test? Interpret your findings.
- The University of the East Europe is interested in the overall performance of its students in the academic year 2020/2021. There were 1460 students registered for this academic year. The University decides to select a sample of 150 students from each of the 5 faculties- Science, Medicine, Law, Social Science and Humanities in proportion to the number of students in each faculty. i). Identify the population of interest for this scenario. iv). If the medical faculty has 584 students registered, calculate how many medical students would be part of the sample of 150.50 people are selected randomly from a certain population and it is found that 17 people in the sample are over 6 feet tall. What is the point estimate of the proportion of people in the population who are over 6 feet tall? 50 people are selected randomly from a certain population and it is found that 17 people in the sample are over 6 feet tall. What is the point estimate of the proportion of people in the population who are over 6 feet tall?A researcher wants to estimate the impact prenatal care during pregnancy can have on anemia rates in pregnant mothers by conducting a retrospective case-control study on new moms. If the prevalence of anemia is approximately 39.7%, how many individuals should the researcher recruit to participate in the study if the researcher wants to be 95% confident that the margin of error is no more than 3.0%? Group of answer choices ntotal = 2044; n control group = 1,022; n case group = 1,022 ntotal = 2044; n control group = 812; n case group = 1,232 ntotal = 4088; n control group = 1,623; n case group = 2,465 ntotal = 4088; n control group = 2,044; n case group = 2,044