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how many hand shakes with six people using polya problem
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- How many ways can a researcher select 5 rats from 10 rats and assign each to a different test? how may waysWe take a coin and flip it 10, 000, 000 times. We notice that 6, 010, 375 times it landed on heads. What do you suspect about the coin? Why?Different amounts of money can be made from 5 coins of different denominations. Find the probablity that an amount is made-up of either 2 or 3 coins.
- 1)boys,girls,or all kids 2)day,week,or age 3)35 or 65 4)more than,less than or the same as3. Can a test for the difference in proportions from Chapter 10 and a chi-square test of independence/association be utilized to analyze data from a 2x2 contingency table? Provide an example. see the attached photo for an example of ch10 problem.a) What proportion of 20% of defective items should a supervisor in the quality system of a plastic products company accept when they ask him to evaluate a routine inspection procedure for orders of 100 identical articles, knowing that the procedure consists of taking a sample of 10 items and the one to accept the order if no more than 2 defective items are found? b) How many defective items are expected to appear in the sample?
- Suppose we want to estimate the proportion of the Helena population who have used marijuana within the last month. We select 4328 participants and ask them each to first privately draw a card from a standard 52-card deck. If they get a “club” they are asked to respond truthfully to the question “Have you used marijuana within the last month?”If they get any other suit they are asked to respond to the question “Does your phone number end in an odd digit?”The study is blinded in the sense that the researcher doesn’t know which question the participant is answering. Hence, participants are guaranteed anonymity and are more likely to be truthful in their responses. The researchers only get a “yes” or “no” answer from each respondent and don’t know the actual results of the card draw. What is the expected probability of a person’s phone number ending in an odd digit? What is the expected probability of a person’s phone number not ending in an odd digit?A researcher has recruited 10 volunteers for a study. The volunteers are split into 2 groups of 5 people, a treatment group and a control group. In how many different ways can this be done? O 126 O 252 O 450 O 504Adela Noriegam, a researcher wants to determine how employee salaries at a certain company are related to the length of employment, previous experience, and education. The researcher selects eight employees from the company and obtains the following data: Employee Salary,y Employment (in yrs), x1 Employment (in yrs), x2 Employment (in yrs), x3 A 57310 10 2 16 B 57380 5 6 16 C 54135 4 1 12 D 56985 6 5 14 E 58715 8 8 16 F 60000 20 0 12 G 59400 9 4 18 H 60720 15 7 17 What is the regression equation? Leave your answer in 2 decimal places Y = ()+() +() +
- How many barking deer, cultivated grassplot and deciduous forests, were expected to be found in the woods? Rounding to the nearest integer2. A calibration study needs to be conducted to see if the readings on 15 test machines are giving similar results. In how many ways can 5 of the 15 machines be selected for the initial investigation?12. An eye doctor keeps track of whether people who come in for testing need glasses. When she separates them by eye color, she gets the following: Glasses No Glasses Brown 43 55 Blue 34 19 Can we say that eye color is independent of the need for glasses? (a = .01)
