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The given table below is gathered from a random sample of 40 junior students which showed the General Weighted Average and the daily allowance of the 40 students. GWA of Junior Students (Non-Working)...

Among n babies born in a certain city, 51% were boys. Suppose we want to test the hypothesis that the true probability of a boy is 1/2. Conduct the appropriate test for this situation, using a non-directional...

SFU claims that 42% of the student-body is freshman. A random sample of 700 students finds that 322 were freshman. Does this indicate that the POPULATION PROPORTION of freshman is different from 42%...

in a survey, 41% of the respondents stated that they talk to their pets on the answering machine or telephone. A veterinarian believed this result to be too high, so he randomly selected 150 pet owners...

Question #1 (10 points) An instructor wanted to determine if chocolate would impact students' performance in beginning statistics. He randomly assigned half the class to Group A and the other...

a random sample is selected from a normal population with a mean of u=30 and a standard deviation of o=8. after treatment is administrated to the individuals in the...

3. The American Lighting Company developed a new light bulb that it believes will last at least 700 hours on average. A test is to be conducted using a random sample of 50 bulbs, and a 1% level of...

a random sample has 42 values. The sample mean is 9.5 and the sample standard deviation is 1.5. Use a level of significance of 0.02 to conduct a left tailed test of the claim that the population mean...

1. The Coca-Cola company wants to evaluate how consumers will respond to a newly developed energy drink. The key question is whether consumer’s preference for the drink depends on the amount of caffeine...

Company W is testing a sales software. Its sales force of 500 people is divided into four regions: Northeast Southeast Central West Each sales person is expected to sell...