KP390 Lecture Notes - Lecture 6: Null Hypothesis, Sampling Error, Statistical Hypothesis Testing
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Do husbands nd their wives thanksgiving dinner taser then their mothers. Ho = husbands nd their mothers thanksgiving cooking no di erent then their wives. H1 : there is a di erence in taste between a husbands wife and his mothers thanksgiving. H1 = xbarwife not equal to xbarmother. Hi : husbands will prefer their mothers thanksgiving cooking to their wives. There is no di erence in intelligence between males and females. There os a di erence between males and females on their intelligence. A researcher has developed a new drug that will reverse the damage caused by a stroke. However, this drug has a shelf life of one week must be given within 2 hours of a stroke and costs ,000 per dose. Null: there is no di erence between the e ectiveness of the new drug and current treatment.
