A nationally known cosmetics company hires a market research firm to test new formulations of moisturizer. Using their extensive list of possible subjects,
the market researchers first divide the subjects into 5 age groups and then randomly select names from each age group to participate in a study. This is an
example of
systematic sampling
a simple random sample
stratified sampling
cluster sampling

Plz will give brainliest

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.