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1.) The gas mileage for a certain model of car is known to have a standard deviation of 4 mi/gallon. A simple random sample of 81 cars of this model is chosen and found to have a mean gas mileage of 26.5 mi/gallon. Construct a 98% confidence interval for the mean gas mileage for this car model.
2.) A 99% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A preliminary sample standard deviation is 1.3. The smallest sample size n that provides the desired accuracy is ?
3.) An SRS of 30 students at UH gave an average height of 5.4 feet and a standard deviation of .3 feet. Construct a 90% confidence interval for the mean height of students at UH.
4.) It is believed that the average amount of money spent per U.S. household per week on food is about $99, with standard deviation $10. A random sample of 25 households in a certain affluent community yields a mean weekly food budget of $100. We want to test the hypothesis that the mean weekly food budget for all households in this community is higher than the national average. State the null and alternative hypotheses for this test, the test statistic and determine if the results significant at the 5% level.
5.) Based on information from a large insurance company, 67% of all damage liability claims are made by single people under the age of 25. A random sample of 54 claims showed that 44 were made by single people under the age of 25. Does this indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company? State the null and alternate hypothesis then give the test statistic and your conclusion.
Logistics refers to the firm's use of resources to achieve the objectives of the firm.
normally distributed with new equal to rupees 15000 and standard deviation equal to 1000. Illustrate what is the lowest income among the richest 250 persons?
Then, reflect on an experience that you had being a member of a team. Classify the good, bad, and tolerable characteristics of being a team member.
What is the difference between significance and meaningfulness/practical significance? Why does it matter? Is significance enough?
How can an organisation attempt to ensure that its remuneration and benefits program actually increases organisational control?
The weights of the sugar bags are normally distributed. What is the probability that 25 randomly selected packages will have an average weight in excess of 16.06 ounces?
Nafta is likely to produce net benefits for the Canadian, Mexican, and US economy. Discuss. Would union members and consumers have the same view?
Describe the country's economic factors, political strategies, goals, policies, and trends from Unit II. Present the culture and belief systems of the country from Unit III.
Perform an internet search on training strategies for health information systems and EHR. Which strategies would you include in your training program, and why?
Illustrate what are its pros and cons? Who supports its use and who opposes it? Has it proved to be as non-polluting as first professed?
How will you use each of these in your major/future profession? Short paragraph covering the LLOs in your chosen profession. If you aren't sure choose something
From a CEO perspective and entering a business that may have had communication challenges what would be your initial plan and how would your plan be challenged?
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