According to a report done last year by the dental industry, 81% of dentists would recommend Starry Whites toothpaste. After some recent negative publicit the sales team at Starry Whites suspects the proportion of dentists who now recommend the brand is lower. The team chooses 150 dentists at random and a them whether they'd recommend the brand. Of those, 118 say they'd recommend it. Complete the parts below to perform a hypothesis test to see if there is enough evidence, at the 0.10 level of significance, to conclude that the proportion, p all dentists who now recommend this brand is less than 81%. (a) State the null hypothesis H and the alternative hypothesis H, that you would use for the test. Ho: 0 合 ロ<ロ OSO H3: 0 ロ=ロ ロ=ロ

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