A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 250 treated subjects experienced headaches (based on data from the
manufacturer). The accompanying calculator display shows results from a test of the claim that less than 8% of treated subjects experienced
headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.01 significance level to complete parts (a)
through (e) below
a. Is the test two-tailed, left-tailed, or right-tailed?
1-PropzTest
prop<0.08
z=0.233126
D=0.592168

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?