# Question

Show that if x is used as a point estimate of µ and s is known, the probability is 1 – α that | – µ|, the absolute value of our error, will not exceed a specified amount e when

(If it turns out that n < 30, this formula cannot be used unless it is reasonable to assume that we are sampling a normal population.)

(If it turns out that n < 30, this formula cannot be used unless it is reasonable to assume that we are sampling a normal population.)

## Answer to relevant Questions

Twenty pilots were tested in a flight simulator, and the time for each to complete a certain corrective action was measured in seconds, with the following results: Use a computer program to find a 95% confidence interval for ...Decide in each case whether the hypothesis is simple or composite: (a) The hypothesis that a random variable has a gamma distribution with α = 3 and β = 2; (b) The hypothesis that a random variable has a gamma ...Suppose that in Example 12.1 the manufacturer of the new medication feels that the odds are 4 to 1 that with this medication the recovery rate from the disease is 0.90 rather than 0.60. With these odds, what are the ...For the likelihood ratio statistic of Exercise 12.22, show that –2 ∙ ln λ approaches t2 as n → ∞. In exercise A random sample of size n from a normal population with unknown mean and variance is to be used to test ...A city police department is considering replacing the tires on its cars with a new brand tires. If µ1 is the average number of miles that the old tires last and µ2 is the average number of miles that the new tires will ...Post your question

0