both sexes, how many selection options are available if 11 men and 17 women are to be selected for the trial? 8,169,525 4. In a clinical trial for a new drug 15 men and 21 women volunteered. Needing a representative sample from D. C. 1369 28 B. 187 A.
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- 1)boys,girls,or all kids 2)day,week,or age 3)35 or 65 4)more than,less than or the same asA population includes elements A, B, C, D, E. Samples are taken 2 elements at a time. What is the value of N? And what is the value of n? Answer using whole number.The population size is always considered in any scientific investigation. If the population is too big, researchers opt to simply get a sample size which is considered a representative of the target population. In your opinion, what is the importance of sample size in research? Provide a concise answer. (5 to 8 senteces)
- How many do not have a joint service marriage? There are_____that do not have a joint service marriage.In a statistics class, there are 45 students where 3/5 of them are girls. In how many ways can a five-student committee be formed with exactly one boy? O 40950 O 315900 411075 O 8262011 Degrees of freedom is 21, first sample size is 12, thus; the second sample size will be: Select one: a. 11 b. 8 c. 9 d. 10
- A random sample of 7 oak trees from two forests was gathered. The results are shown below. Height of Trees (feet) Forest A Forest B 70 92 78 82 84 66 83 76 78 72 88 79 77 85 Based on the samples, which statement best compares the height of the oak trees in each forest? O The oak trees in Forest A are generally taller and have less variabillity than the oak trees in Forest B. The oak trees in Forest A are generally shorter and have less variabillity than the oak trees in Forest B. O The oak trees in Forest A are generally taller and have more variabillity than the oak trees in Forest B. The oak trees in Forest A are generally shorter and have more variabillity than the oak trees in Forest B.4. A school has 600 pupils. The number in each year group is shown below: 7 Year 8 9 10 11 Number of pupils 114 132 120 126 108 Stratified sample A stratified sample of 100 pupils is to be taken, related to how they travel to school. How many pupils from each year group should be tested?Determine u, and o; from the given parameters of the population and sample size. u = 84, o = 8, n = 64
- 150% How many groups of three can the company select? In a recent survey in a Statistics class, it was determined that only 60% of the students attend class on Fridays. From past data it was noted that 98% of those who went to class on Fridays pass the course, while only 20% of those who did not go to class on Fridays passed the course. 4. а. What percentage of students are expected to pass the course? b. Given that a person passes the course, what is the probability that he/she attended classes on Fridays? 5. Describe the sample space (S) where 3 suitcases are inspected for contraband. The suitcases will either be returned or confiscated. O 1:20 cer10A foundation asked each person in a representative sample of high school students and in a representative sample of high school teachers which of the rights guaranteed by the First Amendment they thought was the most important. Suppose that the sample size for each sample was 1,000. Data consistent with summary values from the study are summarized in the accompanying table. Students = Teachers Freedom of Speech 658 400 USE SALT Most Important First Amendment Right Freedom of Religion Freedom to Peacefully Assemble Freedom of the Press 30 55 245 420 20 55 Freedom to Petition the Government 47 70 (a) Carry out a hypothesis test to determine if there is convincing evidence that the proportions falling into the five First Amendment rights categories are not the same for teachers and students. Use a significance level of a = 0.01. Calculate the test statistic. (Round your answer to two decimal places.) x²= Use technology to calculate the P-value. (Round your answer to four decimal places.)…