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1. Discuss an example where you would use a test of hypothesis for in your professional life, personal life, education or politics. Provide sufficient details so that the context is clear and also discuss if the example involves:
population mean or proportion
large sample or small sample
one or two populations
description of the population(s)
hypothesis being tested
one-sided or two-sided test
2. Discuss an example where you would use a test of hypothesis for means with dependent/paired samples at your employment, personal life, your education or in society.
Find the minimum sample size needed using a prior study that found that 36% of the respondents said they support abolishing the penny.
Suppose that n trials of a binomial experiment result in no successes.
Describe the data appear the strength of the relationship among variables is sufficient to warrant using linear regression forecasting.
Compute β-error of test in part (a) if true difference in mean burning rate is 2.5 centimeters per second.
An environmental agency recently claimed more than 28% of consumers have stopped buying a certain product because of environmental concerns.
In a random sample of 150 sports cars, 60 failed emissions on the first pass. Is there sufficient evidence to indicate that the percentage of first failure for sports cars is higher than the percentage for all passenger cars?
Under new grading scale, how many students will have A's, B's, C's, D's and F's? Do you beleive the instructor must grade on a curve? Explain why or why not?
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 the mean for all walkers.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
Suppose that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standard deviation .6 ounces.
Create a scenario for applying the Goodness of Fit application of Chi-square. State the hypotheses, the level of significance, the result and its meaning.
Suppose that patrons of a restaurant were asked whether they preferred beer or whether they preferred wine. 70% said that they preferred beer. 60% of the patrons were male. 80% of the males preferred beer.
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