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Ierofanga [76]
2 years ago
5

According to the Centers for Disease Control and Prevention, the proportion of U.S. adults age 25 or older who smoke is 0.22. A

researcher suspects that the rate is lower among U.S. adults 25 or older who have a bachelor's degree. She took a random sample of 275 U.S. adults 25 or older who have a bachelor's degree, and the proportion of smokers in her sample is 0.18. What is the null hypothesis in this case? What is the alternative hypothesis in this case?
Mathematics
1 answer:
Dmitrij [34]2 years ago
3 0

Answer: Null hypothesis :H_0:\ p=0.22

Alternative hypothesis : H_a:\ p

Step-by-step explanation:

Given claim : The proportion of U.S. adults age 25 or older who smoke : p=0.22

A researcher suspects that the rate is lower among U.S. adults 25 or older who have a bachelor's degree. i.e. p

Since the null hypothesis is a fact checked by the researcher or the experimenter that always contains a equals to sign.

∴ Null hypothesis :H_0:\ p=0.22

Alternative hypothesis : H_a:\ p

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