8.)(1 point) A test ofHH0:=1againstHHa:1has test statisticzz= 2.28. Answer "Yes/Y" or "No/N" to the following questions.

Is this test significant at the 10% level (= 0.1)?

Is it significant at the 5% level (= 0.05)?

10.)(1 point) Golf-course designers have become concerned that old courses are becoming obsolete since new technology has given golfers the ability to hit the ball so far. Designers, therefore, have proposed that new golf courses need to be built expecting that the average golfer can hit the ball more than250yards on average. Suppose a random sample 179golfers be chosen so that their mean driving distance is245.7yards. The population standard deviation is45.8 Calculate the followings for a hypothesis test whereH0:=250andHa:<250:

(a)test statistic

(b)p-valuep=