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Could you answer the following multiple choice questions?Question: A cause-effect diagram is used in which of the following phases? AThe open phaseBThe narrowing phaseCThe close phaseDThe decision phaseQuestion: When the null hypothesis contains an equal sign, ___________. AThe hypothesis test has two tails (or rejection regions)BThe alternative hypothesis contains a "not equal to" signCIt can be rejected by the test statistic being significantly large or smallDAll of the above Question: The chi-square distribution is ____________. A Bell shapedB BimodalC LevelD Skewed Question: According to the Theory of Constraints, what is the goal of a company? A To increase salesB To decrease costsC To make moneyD To increase quality Question: Which of the following statements is MOST correct? A If "r" is greater than "1", there is a positive correlationB If "r" is less than one, there is a negative correlationC If "r" is less than one, but greater than 0, there is a positive correlationD If "r" is a negative number, there is a negative correlation Question: A salesman enters a food-processing facility and claims that his new juice box filling machine can save the company money, because he is 95% confident it has less variation from the nominal setting than the company's current machine. A random sample of 25 juice boxes from the salesman's machine yields a standard deviation of 0.09 ounce. A random sample of 16 juice boxes from the company's current machine yields a standard deviation of 0.13 ounce. What can we conclude? A The salesman is correct. We can say with 95% confidence that his machine has less variation from the nominal setting than the company's current machineB The salesman may be correct. It is not possible to prove he is correct, but indications are that his machine has less variation from the nominal setting than the company's current machineC We cannot show that the salesman is incorrect. We cannot prove that he is wrong, but indications are that the company's machine has the same variation as the salesman's machineD The salesman is incorrect. We cannot say with 95% confidence that the salesman's machine has less variation from the nominal setting than the company's current machine
Question: A company wanted to know if a special gas additive truly (and significantly) affected the gas mileage in their company vehicles. Use the data below to determine whether or not the additive significantly affected gas mileage. A Yes, because the T-statistic of 3.125 exceeded the T-critical value of 2.365B Yes, because the T-statistic of 4.51 exceeded the T-critical value of 2.365C No, because the T-statistic of 0.563 failed to exceed the T-critical value of 2.365D Yes, because the T-critical value is 1.895
If the lowest score you can earn and still be eligible for employment is an 84, what is the mean score for the exam? Round your answer to the nearest tenth.
A high of 10 was possible. A sample of five tests was selected from each group. The test grade results were: At the 0.01 level, what is the critical value?
A Geiger-Muller tube and a scaler record approximately 50 counts per second due to a radioactive source. What is the shortest counting time required so that the percentage error of the counts will not exceed 1%?
What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?
A study of 200 computer service firms revealed these incomes after taxes: What is the probability that a particular firm selected has $1 million or more in income after taxes?
What other information would you like to know to answer the question about salary equity between the genders? Why?
If the mean times for both George and Julia are actually the same, what is the probability that George will be let go?
A random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. From past information, it is known that the standard deviation of the population is 22 mph.
let the number of trials be n = 3, and let the probability of success be p = 0.0228. Use a calculator to compare:
Estimate the number of workers in the sample who are union members by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.
A study is made by an auto insurance company to determine if there is a relationship between the driver's age and the number of automobile accident claims submitted during a one-year period. From a sample of 300 claims, the following information w..
"In each of the following situations, a hypothesis test for a population mean is needed. For each situation select the correct choice of the null hypothesis H0 and the alternative hypothesis Ha.
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