A teacher randomly selects three students each month from a class of 30 students to be the students of the month. Each student receives a special certificate special seating in class, and a free homework pass. How many different groups of three students could be selected?

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

What point is the projection of q on a) r b) s c) t

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).