The significance level, a, is the probability of making a type Il error. True False

Is the expected value (mean) of the probability distribution of a random variable always one of the possible values of x from the distribution? ExplainWhy not

Statistical power is related to: a. effect size b. the probability of correctly rejecting the null hypothesis c. the probability of not making a Type 1 error d. the probability of not making a Type 2 error

The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions,assume these values are not changing from year to year, and that the population of the United States is 312 millionpeople. Cause of Death in US Cause Number of deaths Passenger car occupant 13,100 Motorcycle driver 4,500 Tornado 553 Skydiving 56 What is the probability that you died as a passenger car occupant last year?

Assume that among the general population, 13 people out of every 1000 have HIV/AIDS.  A pharmaceutical company designs a screening test for HIV/AIDS that has a 99% sensitivity and an 89% specificity.  Given that someone has a positive test result, what is the probability they have HIV/AIDS?