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Draw a diagram. Provide the computation of the test statistics. State your decision in terms of the null hypothesis.
A study of 36 members of the Central Park Walkers showed that they could walk at an average rate of 2.6 miles per hour. The sample standard deviation is 0.4. Find the 95% confidence interval for th
Use Excel to do a correlation between the following variables. Demonstrates clearly and fully the ability to use Excel to perform the correlation for the data set.
It must pay $825,000 plus $175,000 in court costs. If it wins in court the plaintiffs pay the court costs. Identify the states of nature of this decision-making problem.
When testing H0: ρ = 0 against the two-sided alternative H1: ρ ≠ 0. To test H0: ρ = 0 against the one-sided alternative H1: ρ > 0 at a significant level of 0.193, the p-value w
Is there evidence of a difference in the variability of the battery life between the two types of digital cameras? use(a = 0.05). Determine the p-value in (a) and interpret its meaning.
The U.S. is approximately distributed, with a mean of 16 gallons and variance of 25 gallons: what proportion of adults use more than 20 gallons per week?
In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the p-value?
If the sample mean is 14.7 oz. and the sample standard deviation is 0.50 oz., find the 95% confidence interval of the true mean?
The cost per unit from Memphis to Dallas is $11, to Atlanta is $8, and to Denver is $12. Formulate the appropriate linear program and solve uisng Excel Solver. Show your work.
The plant supervior would like to assign jobs so that total time is minimized. Find the best solution. Formulate the appropriate linear program and solve uisng Excel Solver. Show your work.
A new shopping mall is considering setting up an information desk manned by one employee. Find the proportion of time that the employee is busy.
In addition, the cruise line has decided to plan for an additional 25% more meals than bookings. Formulate the appropriate linear program and solve using Excel Solver. Show your Work in Excel.
Suppose that you have the following data: Draw the scatter diagram. Does it appear that x and y are related? If so, how?
A random sample of 20 patients found a variance of 525. What is the smaller critical value that would be used in a hypothesis test at a .05 significance level?
A large health maintenance organization is interested in the prescribing patterns of physicians. If 0.05, determine whether differences among the treatment, block, and interactive effects are signific
Suppose that we are interested in the relationship between the age of the individuals. Use these data to find the covariance between age and the number of visits.
Dallas Texas found the average gasoline to be $ 1.294 a gallon with a standard deviation of $ .0526. what is the critical value using a=.05 and what is the test value.
Jim pays Ann 2 cents if the next customer does not arrive within 1 minute; otherwise, Ann pays Jim 2 cents. Determine Jim's average payoff in an 8-hour period. The interarrival time is exponential w
h0 is rejected if xbar<=9.25. If the population mean is 9, what is the probability that the sample mean leads to the conclusion "dont reject h0?
Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
Give the test value if a recent survey reported that in a sample of 300 student who attended two year colleges, 105 work at least 20 hours a week and a sample of 225 students.
Do the sample data present sufficient evidence to reject the manufacture's claim? Test using a a=0.05. What is the p-value of the test.
Explain how you would use these 100 volunteers in a designed experiment to test the vaccine. Include all important details of designing the experiment.
That is, all 77 null hypothesis are true. What is the probability that one specific test shows a difference that is significant at the 5% level?