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Subject: sample Question
Details: A movie theater owner wanted to know how many people hated commercial at the beginning of movies if less then 10% hated the commercials the he would leave them. If more than 10% surveyed hated the commercial then they would cancel. A sample of 100 people we surveyed. 14 patrons surveyed as hating the commercials at the beginning of movies. How do I find the significance in regards to making a type I error?
For the samples summarized below, test the hypothesis at ∞ =.05 that the two variances are equal. Variance Number of data values Sample 1 19 8 Sample 2 9 18
Computing the expected values for the given probability distribution and evaluate the expected values of the following probability distributions
The average hourly wage last year for members of the hospital clerical staff in a large city was $6.32. The standard deviation of the population was $.54. This year a sample of 50 workers had an average hourly wage of $6.51. Test the claim at alph..
Team Sports, Inc. sells sporting goods to high schools and colleges via a nationally distributed catalog. Management at Team Sports estimates they will sell 2,000 Wilson Model A2000 catcher's mitts next year.
Calculate and compare the means for IQ as a dependent variable and gender as your independent variable. Do you think males and females differed in their IQ scores? Why?
Find the probability that he will answer all 10 questions correctly.
Suppose a sequence of independent trials is performed where each trial results in either success or failure. Suppose X=the number of failures before the first success, with p=probability of success on any one trial.
A researcher studies the average distance that 130 people who are living in U.S. urban areas walk each week: What is the size of the sample? Identify the population.
A local politician wants an estimate of the proportion of the population who support her fiscal policies. She wants the estimate to be within .06 of the true proportion. Assume a 95 percent level of confidence.
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
The level of significance is quantitatively defined as ? and the statistical power of a test is quantitatively defined as 1-?
Sketch a histogram of these data and give the modal class.
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