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Consider a coin with a fixed, but unkown, probability of turning up heads. Treat the unkown parameter as a random variable with a uniform prior. Given a sequence of independent flips of such a coin, derive a simple expression for the probability that the next flip will be a head.
Generate a 95% confidence interval for the true mean total cholesterol levels in children.
Elucidate this data use an appropriate statistical test to explain whether the population mean TV "on" time has declined in the past decade.
Suppose that the critical region for a certain test of hypothesis is of the form T greater than or equal to 2.5 and the computed value of T from the data is -2.75.
The nicotine patch group had abstained from smoking, as 87 in the patch plus drug group. is this good evidence that adding bupropion increases the success rate?
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha. b) Explain to management what your findings are and what this suggests about future decisions vs work options.
Make a scatter plot of Y and X1 using Word. To do this click on insert and then chart. Click on X Y (Scatter). Enter the data from the table.
Clouds were randomly seeded or not with silver nitrate. Rainfall amounts were recorded from the clouds. The purpose of the experiment was to determine if cloud seeding increases rainfall. The following data is obtained:
The flashlight batteries produced by one of the northern manufacturers are known to have an average life of 60 hours with a standard deviation of 4 hours. Use Chebyshev's theorem to answer the following questions.
A case-control study of relationship between liver cirrhosis among both non alcoholics and alcoholics. Describe whether smoking is confounder.
A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 98% confidence interval for the true proportion of women shoppers who shop on impulse?
The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
If the mean systolic blood pressure is 130 and the standard deviation is 8, find the upper and lower readings that would qualify people to participate in the study.
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