有没有在梅西读统计学的？

alaaaaaan

Enroll了s2 Applied Statistics的GD,  求认识 statistics的同学。

joeistheman

Suppose that a pharmaceutical company wants to claim that side effects will be experienced by fewer than 20% of the patients who use a particular medication. In a clinical trial with n = 400 patients, they find that 68 patients experienced side effects. We wish to conduct a hypothesis test to determine if the company’s claim is true.

1.        Determine the null and alternative hypotheses.
H0: π > 0.2     (the Company’s claim is not true)
H1: π < 0.2     (the Company’s claim is true)

alaaaaaan

joeistheman 发表于 2018-6-25 11:26
Suppose that a pharmaceutical company wants to claim that side effects will be experienced by fewer  ...

咋扔了道题？