Data Homework 12

Data Homework 12 - a Who is the researcher Hydroxicuts...

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Bryan Redd Homework 12 Due Date: Thursday, February 28, 2008 by 11:55 p.m. 1. A tire manufacturer claims that its tires will last no less than an average of 60,000 km before they need to be replaced. A consumer group wishes to challenge this claim. a. Who is the researcher? Consumer Group b. State, in English and precisely , your null and alternative hypotheses. Alternative Hypothesis: the tire manufacturer tires will not last an average of 60,000km before they need to be replaced. Null Hypothesis: the tire manufacturers tires will last no less than an average of 60,000km before they need to be replaced. 2. An independent group reported that those who use Hydroxicut lose on average 1 pound of weight per week. The manufacturer of Hydroxicut wishes to challenge this claim and to prove that those who use Hydroxicut lose on average more than one pound of weight per week.
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Unformatted text preview: a. Who is the researcher? Hydroxicuts Manufacturer b. State, in English and precisely , your null and alternative hypotheses. Alternative Hypothesis: Users of Hydroxycut lose more than one pound per week. Null Hypothesis: Users of Hydroxycut lose one pound of weight per weight or possibly lose no weight at all. 3. The researchers at Mayo Clinic wonder whether nicotine patch increases or decreases the tendency to smoke cigarettes. They have recruited 60 individuals who on average smoked 14 cigarettes per day put all of them on the nicotine patch. a. Who is the researcher? The Mayo Clinic b. State, in English and precisely , your null and alternative hypotheses Alternative Hypothesis: Users of the Nicotine Patch show decreased tendency or quit smoking cigarettes. Null Hypothesis: Users of the Nicotine Patch show increased tendency to smoke cigarettes....
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This note was uploaded on 08/08/2011 for the course WCOB 1033 taught by Professor Jensen during the Fall '05 term at Arkansas.

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