28. For The following: LisT The null and alTernaTive hypoTheses: Cl. In a recenT survey of drinking laws, a random sample of 1000 women showed ThaT 65% were in favor of increasing The legal drinking age. In a random sample of 1000 men, 60% favored increasing The legal drinking age. TesT The hypoThesis ThaT The percenTage of men and women favoring a higher legal drinking age is The same. According To The manufacTurer of M&Ms 12% of peanuT M&Ms in a bag should be brown, 15% yellow, 12% red, 23% blue, 23% orange, and 15% green. A sTudenT wanTed To deTermine wheTher a randomly selecTed bag of peanuT M&Ms had conTenTs ThaT followed This disTribuTion. He counTed The number of M&Ms ThaT were each color and obTained The resulTs show below. There is daTa ThaT represenTs The number of pods on a random sample of soybean planTs for The following Three Types: LiberTy, No Till, Chisel Plowed. An agriculTural researcher wanTs To deTermine if The mean number pads for each ploT Type are The same. Nine sTudenTs Took The SAT. Their average score was 876. AfTer This, They read a book on TesT preparaTion and reTook The SAT. Their new average score was 891. TesT The claim ThaT The book had no effecT on Their scores