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Questions: John went to see the doctor about a severe headache. The doctor selected John at random to have a blood test for swine flu, which is suspected to affect 1 in 5,000 people in this country. The test is 99% accurate, in the sense that the probability of a false positive is 1%. The probability of a false negative is zero. John's test came back positive. What is the probability that John has swine flu?
One group uses the animation, and the other studies the text. The company retests all the students and compares the increase in creative writing in the two groups. Is this an experiment? Why or why not?
Imagine that an auto manufacturer wants to evaluate how potential customers will rate handling for a new car being considered for production.- Determine the population mean, variance and standard deviation.
If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test? one-tailed alternative hypothesis
Analyze the Regression and draw the scatter plot for results of the Hsp90 affinity and Her-2 degradation studies.
a random sample of 25 was drawn from a normal distribution with a standard deviation of 5. the sample size is 400.
Estimate u with an approximate 95% confidence interval. Estimate p, the proportion of measurements in the population that are greater than 30, with an approximate 95% confidence interval.
Which of the following hypotheses is a relationship type and which a difference type? Then in groups write some more examples of both types of hypotheses.
conduct a hypothesis test to determine if the proportion of business students at bayview university who were involved
A study is conducted to estimate the demand for housing (y) based on current interest rate X1 and the rate of unemployment. The data in Table 8.6.1 are obtained.
What is a dummy variable, and how is it useful to multiple regression? Give an example of three dummy variables that could be used in describing your home town.
a college graduate school president is interested in knowing what proportion of applicants would like to be accepted
Prepare a 95% confidence interval for the average grocery bill. Would a 99% confidence interval be narrower or wider than the 95% confidence interval?
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