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Question: A box has three coins. One has two heads, one has two tails, and the other is a fair coin with one head and one tail. A coin is chosen at random, is flipped, and comes up heads.
a. What is the probability that the coin chosen is the two-headed coin?
b. What is the probability that if it is thrown another time it will come up heads?
c. Answer part (a) again, supposing that the coin is thrown a second time and comes up heads again.
kilgallen inc. has the total inventory of 1000. currently kilgallen has this entire inventory stored in one warehouse.
if a sample is subdivided into subsamples a minimal sample size of 30 is necessary for every subsample?a. trueb.
Obtain the Normal Equivalent Deviates corresponding to the observed values of X and use these to produce a Q-Q plot. Does your plot indicate that these data are consistent with coming from a Normal distribution?
Assuming that the Poisson distribution is a plausible model in describing variability of asbestos fiber counts in filters; derive a 95% confidence interval indicating the variability in the average number in asbestos fibers.
If he succeeds he will obtain 2000 US dollars. suppose that thief currently has 1500 US dollars in his pocket. Compute expected value of this undertaking.
Ten wireless customers are chosen. Under what conditions is the number of Verizon customers a binomial random variable?
The probability that the speed will be more than 70 words per minute is 0.15. Find the mean and the standard deviation of typing speed.
Suppose we have a coin (not necessarily balanced) with p being the probability of heads. Assume a uniform prior for p. Suppose in 20 tosses of this coin, we obtained 12 heads. Test the hypothesis H0 : p ≥ 0.50 vs. Ha : p > 0.50.
The firm for which you are working is growing. They have announced that they will open facilities in ten states. Calculate the mean, median, mode, variance, and standard deviation for both the sample and the population
Analyze the data and explain which one would be the better medication for both a sore throat and a fever
Refer to the data of Exercise 30 and compute a 95% CI for the difference between true average concentrations for treatments II and III.
A restaurant manager is interested in taking a more statistical approach to predicting customer load. She begins the process by gathering data.
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