appropriate response. 1) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an ace or a heart. 17 7 3 4 A) B) C) D) 52 52 13 13 Answer: D 2) The events A and B are mutually exclusive. If P(A) = 0.7 and P(B) = 0.2‚ what is P(A or B)? A) 0.5 B) 0.9 C) 0.14 D) 0 Answer: B 3) A coin is tossed. Find the probability that the result is heads. A) 1 B) 0.5 C) 0.1 Answer: B 4) Suppose you are using = 0.01 to test the claim that µ = 950 using a P-value. You are given the
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computer chips is taken. What is the probability that the sample mean will be between 0.99 and 1.01 centimeters? MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 3) The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed‚ with mean of 3.2 pounds and standard deviation of 0.8 pound. What percentage of samples of 4 fish will have sample means between 3.0 and 4.0 pounds?
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A point estimation is a sample statistic that gives a good guess about a population parameter. In the same way‚ a point estimate of the mean overpayment is simply a good guess about what the average overpayment for the population is. Investigating all 1‚000 claims and obtaining the overpayment amount for each would either be impractical‚ unfeasible or both. Thus‚ the auditor deems a sample size of 50 claims to be adequate and sufficiently representative of the entire population. The mean overpayment
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by a hypothesis test (these questions will investigate relationships between variables) and one or more could be answered from a confidence interval (this question will investigate the true value of an unknown parameter). Data Analysis: Conduct appropriate data analysis techniques to answer your research questions. This analysis should include two or more hypothesis tests‚ can include one confidence interval‚ and should include at least one graph. (If you don’t do a confidence interval‚ you
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Question 1 of 1: Interpreting the Confidence Interval Solve the following problems: A simple random sample of 40 salaries of NCAA football coaches has a mean of $415‚953 and a standard deviation of $463‚364. Construct a 95% confidence interval estimate of the mean salary of an NCAA football coach. In a study designed to test the effectiveness of acupuncture for treating migraine‚ 142 subjects were treated with acupuncture and 80 subjects were given a sham treatment. The numbers of migraine attacks
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Techniques of Hypothesis Testing Dr. Scott Stevens Objectives When you finish reading this article‚ you should be able to • Determine the appropriate null and alternate hypotheses for your hypothesis test • Determine if your test is one- or two- tailed • Conduct an appropriate test using Excel in any of three ways o Using the critical score approach o Using the non-rejection region approach (for a two-tailed test) o Using the P-value approach
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experiences and write down your thoughts about them‚ asking questions such as: • "What did I notice?" • "Why did it happen this way?" • "How was I changed by this?" • "What might I have done differently?" • "How could I have handled the situation differently in hindsight?" • " What have I learnt about myself?" • " How do I interact in a team?" • "How did I feel?" • "Why did I react the way I did?" • "How can I improve for next time?" You will need to do a lot of research‚ There is a
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Hypothesis Testing Paper Homelessness is an ever growing problem that the numbers seem to increase in severity in the larger cities. Chicago‚ Illinois has numbers that exceed more than 93‚000 individuals that are homeless and out of those there is close to 20‚000 that also suffer with a mental illness. In addressing the link between mental illness and homelessness it is clear that the numbers are large due to lack of medical care and the de-institutionalization from the 1960’s. In an attempt to
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size from 4.0‚ 4.5‚ 5.0‚ 5.5‚ 6.0‚ 6.5‚ 7.0‚ 7.5‚ 8.0‚ 8.5‚ 9.0‚ and 9.5. How many wedding rings should I order for each of the ring size if I order 5000 rings altogether? (Note: It is natural to assume that if your ring size falls between two of the above standard manufacturing size‚ you will take the bigger of the two.) 2. (8 points) According to a study by my PseudoScientific Consulting‚ the time interval between Atlantic hurricane of category 4 has a mean of 456 days and a standard deviation
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Hypothesis Testing Paper Team A PSY/315 July 7‚ 2014 Instructor: Regina Pendergrass Inside statistics‚ it has to be understood what hypothesis testing is to find and verify research to be studied. Hypothesis testing is a form of research that is used to show how a certain issue will end or how the researcher(s) think the issue will end in the environment that it is situated. The testing will show that even though an answer may form‚ it does not prove the answer is correct secondary to the
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