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A coin was flipped 60 times and came up heads 38 times.
(a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
(b) Calculate a p-value and interpret it.
Fit a multiple linear regression model for predicting the hospital duration using age, sex, body temperature, white blood cell counts, antibiotic use, blood culture and service
If garage is robbed, determine the probability doors were left open?
At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?
Taking care to control for weather conditions and other variables as much as possible. Define the null hypothesis.
What is the expected value and variance for the number of contacts in eight attempts?
I have fit a line to data representing cholesterol readings for 28 individuals starting a cholesterol reducing drug. The computer provides the following output, The degrees of freedom for the t test for the slope are
We are interested in testing to find out whether the variance of the population is vitally more than 0.003
Find the probability that exactly 15 flights arrive on time.
Create a 99 percent confidence interval for mean daily intake of milk. You may suppose daily intake amounts are usually distributed.
A chance sample of 50 families revealed an average or median of $112,000 and a standard deviation of $40,000. What is the standard error of the average or median?
Carry out suitable multiple comparison procedure to determine the source of the difference.
Find the probability that in a given year,a) Exactly one major hurricane will strike the U.S. mainland
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