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Flu cases this past season in the Oshkosh school system were about 15 per week. For the entire state, the weekly average is 16 and the standard deviation, 2.35. Are the kids in Oshkosh as sick as the kids throughout the state? I don't understand steps to take to figure out the problem.
Develop a regression model for predicting the difference in the asking price and selling price.
Find the probability that in a given month:
Stanford Binet IQ scores have a mean of 100 and a standard deviation of 15. Albert Einstein reportedly had an IQ of 160. Convert Einstein's IQ score to a z score.
In the real world, a given null hypothesis is false; but the collected data lead to the null hypothesis being accepted. That is, the data lead to a failure to reject the null hypothesis.
Perform a chi-square test on the following data:
In terms of the standard scores for both sections, the score of which section was better? What are the z-scores for both sections?
What is the best predicted IQ of the wife, given that the husband has an IQ of 105 ? Use a significance level of 0.05.
How many students should be surveyed to estimate the mean score within 25 points with 90% confidence?
Make a relative frequency histogram by using ten-point intervals to show the distribution of the scores.
What is the smallest number of consumers that Timex can survey to guarantee a margin of error of .05 or less at a 99% confidence level and calculate the intervals correctly
The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:
Arbitrarily choose someone from sample. Determine the probability that they are Jewish and Democrat?
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