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- UNIVERSITY OF BOTSWANA FACULTY OF SCIENCE DEPARTMENT OF MATHEMATICS MAT271 INTRODUCTION TO MATHEMATICAL STATISTICS TUTORIAL EXECISES 1 PART I. COUNTING PRINCIPLES I (1) A president and a treasurer are to be chosen from a student club consisting of 50 people. How many different choices of officers are possible if (a) there are no restrictions; (b) A will serve only if he is president; (c) B and C will serve together or not at all; (d) D and E will not serve together? (2) Four married couples have bought 8 scats in the same row for a concert. In how many different ways can they be seated (a) With no restrictions? (b) If each couple is to sit together? (c) If all the men sit together to the right of all the women? (3) You are going on a road trip with 4 friends in a car that fits 5 people. How many different ways can everyone sit if you have to drive the whole way? (4) In how many ways can 4 boys and 5 girls sit in a row if the boys and girls must alternate? (5) In how many ways can 5…Weight Gain of Athletes A researcher wishes to see whether there is any difference in the weight gains of athletes following one of three special diets. Athletes are randomly assigned to three groups and placed on the diet for 6 weeks. The weight gains (in pounds) are shown here. At a=0.005, can the researcher conclude that there is a difference in the diets? Diet A: 3, 4, 5, 6 Diet B: 12, 13, 14, 6, 7, 8 Diet C: 3, 4, 5 ,6 Part 2. State the hypotheses and identify the claim with the correct hypothesis. Part 3. Compute the test value. Always round score values to two decimal places. Part 4. Find the -value. Round the answer to four decimal places. Part 5. Reject or not to reject the null hypothesis.Question Number 02: Calculate the CGPA for the subjects from the grades as mentioned in Table 1:Serial Number Courses: Credit Hours Grade Achieved1. Business Analytics 3 B2. Organization Behavior 3 C+3. Pakistan Studies 2 B+4. Business Communication 2 B+5. Cost Accounting 3 C+6. Probability & Statistics 3 C7. SPSS Lab. 1 A Table 1.The corresponding GPA for grades are:A = 4.0 , B+ = 3.5 , B = 3.0 , C+ = 2.5 , C = 2.0 , F = 0.0
- escription nstructions Aultiple Attempts This test allows multiple attempts. Section 6.2 Force Completion This test can be saved and resumed later. Your answers are saved automatically. - Question Completion Status: QUESTION 1 In a survey of 380 households regarding the ownership of VCRS and DVD players, the following data was obtained: 350 households own one or more VCRS. 180 households own one or more VCRS and one or more DVD players. 13 households do not own a VCR or a DVD player. How many households only own one or more DVD players? O a. 16 households O b.29 households Oc. 30 households O d. 20 households O e. 19 households Of 17 households QUESTION 2 On a certain day, the Wilton County Jail had 184 prisoners. Of these, 128 were accused of felonies, and 117 were accused of misdemea Chck Save and Submit to save and submir. Click Sare All Answers to save all ansuers. earchPsychology 215 – Basic Statistical Methods - Andrzejewski Problem Set #10 Submit a document with the answers to the following questions along with an Excel workbook with the appropriate computations. Be sure to report the appropriate statistics. 1. A cognitive psychologist was interested in the ability to solve puzzles. They selected 24 college sophomores and matched them on the basis of IQ and assigned them, in groups of four, to one of four puzzle conditions (six blocks of four). The psychologist wants to make sure that all the puzzles are equally difficult. The dependent variable was the amount of time it took for a subject to complete the puzzle. The data are presented below. Were there differences in puzzle difficulty at the .05 level? Make sure to complete a 6-step hypothesis test. Block 1 2 3 4 5 -327872 1 25 25 2 34 38 33 32 36 34 Puzzle 3 31 36 30 41 39 40 4 40 37 32 38 46 39In a hospital, there are N = 5000 patient records and a simple random sample of n= 15 will be drawn. Using Table A.2 given in the Appendix, list the steps to generate random numbers to satisfy the conditions in simple random sampling (a) (b) determine which records to be included in the sample of size n= 15.
- Answer pleaseOnly typing answer Please explain step by step21 The Ebola virus has an infection rate of 11% per day as compared to the SARS virus, which has a rate of 4% per day. If there were one case of Ebola and 30 cases of SARS initially reported to authorities and cases are reported each day, which statement is true? At day 10 and day 53 there are more Ebola cases. (2) At day 10 and day 53 there are more SARS cases. (3) At day 10 there are more SARS cases, but at day 53 there are more Ebola cases. (4) At day 10 there are more Ebola cases, but at day 53 there are more SARS cases.
- Subject: Discrete StructuresQuestion: You have a fever, you take the COVID-19 PCR test. For people who have COVID, the test goes positive 80% of the time. 10% the time are false positives. If 1% of the population have COVID-19, and your PCR test is positive, what are your chances that you really have COVID-19?SQU E-LEARNING SYSTEM (ACADEMIC) elearn.squ.edu.om/mod/quiz/att BUSINESS STATISTICS I- Spring21 Time left 0:26:15 Question 16 A decislon-maker has subjectively assigned the followlng probablitles to the four outcomes: P(A)=0.25, P(B)=0.15, P(C)=0.35, and P(D)=0.30. These are valld (acceptable) probablity assignments. Not yet answered Select one: Marked out of O True Ta 1.000 O False 1 P Flag question NEXT PAGE PREVIOUS PAGE Fini https://elearn.squ edu.om/mod CONTACTIIC acerQuestion C
