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Question: A microbiologist is testing a water sample for E-coli. Suppose the null hypothesis, H0, is: the sample does not contain E-coli. The probability that the sample does not contain E-coli, but the microbiologist thinks it does is 0.012. The probability that the sample does contain E-coli, but the microbiologist thinks it does not is 0.002. What is the power of this test?
She surveys 100 randomly selected families and finds the mean income to be $96,321 with a standard deviation of $9555.With a0.05, is she correct?
Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance
Refer to the probability distribution for the sum of two dice. What is the value of P(X ≤ 4)? What does this probability measure? Explain what is measured by the value of 1 - P(X ≤ 4).
What proportion of children 10 to 15 years of age have total cholesterol between 180 and 190? B. what proportion of children 10 to 15 years of age would be classified.
Without computing it, how would you expect a 95% confidence interval for the second experiment to differ from the confidence interval for the first?
using t test for significance of slope to determine whether the independent variable is a significant predictornbsp of
a car rental agency at a local airport has available 5 fords 7 chevrolets 4 dodges 3 hondas and 4 toyotas. if the
A sample of 4 different calculators is randomly selected from a group containing 42 that are defective and 27 that have no defects. what is the probability that all four of the calculators selected are defective?
Show the sampling distribution of p. (b) What is the probability that the poll will provide a sample distribution within 0.02 of the population proportion?
If No Leak bids the disposal job at $85, on what percentage of such jobs will the actual time required exceed the time for which it will be getting paid?
Assuming these data are from two independent groups, calculate dfX, dfY, and dftotal for the data above. Determine the critical values for t based on the df you calculated for the question above, assuming a two-tailed test with a p level of 0.05.
calculate the sample size needed given these factorsanova fixed effects omnibus one-waysmall effect sizealpha .05beta
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