Among all the income tax forms filed in a certain year, the mean tax paid was $2000, and the standard deviation was $500. in addition, for 10% of the forms, the tax paid was greater than $3000. a random sample of 625 tax forms is drawn. a. what is the probability that the average tax paid on the sample forms is greater than $1980? b. what is the probability that more than 60 of the sampled forms have a tax of greate

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.

Is the figure congruent? yes or no?

Plz hurry evaluate the expression a+b where a=8 and b=19