According to the 2004 Canadian Community Health Survey,23.1% of Canadians aged 18 or older were considered obese; that is,they had a body mass index (BMI)of 30 or higher.Suppose you believe that the percentage of obese Canadians has increased since 2004 and wish to test your belief.What are the null and alternative hypotheses? A)H0: p ≠ 30 HA: p = 30 B)H0: p = 0.231 HA: p ≠ 0.231 C)H0: p = 0.231 HA: p 0.231 D)H0: p = 0.231 HA: p

Question

According to the 2004 Canadian Community Health Survey,23.1% of Canadians aged 18 or older were considered obese; that is,they had a body mass index (BMI)of 30 or higher.Suppose you believe that the percentage of obese Canadians has increased since 2004 and wish to test your belief.What are the null and alternative hypotheses? A)H0: p ≠ 30 HA: p = 30 B)H0: p = 0.231 HA: p ≠ 0.231 C)H0: p = 0.231 HA: p > 0.231 D)H0: p = 0.231 HA: p < 0.231 E)H0: p < 30 HA: p > 30

Quizplus · Accepted Answer

The null hypothesis (H0) represents the status quo or the condition that there has been no change since 2004, which is that the proportion (p) of obese Canadians is 23.1% or 0.231. The alternative hypothesis (HA) represents the researcher's belief or what is being tested, which in this case is that the percentage of obese Canadians has increased since 2004, hence p > 0.231.