7.4.9-1 An education researcher claims that at most 4% of working college students are employed as teachers or teaching assistants. In a random sample of 400 working college students, 6% are employed...

​(a) Identify the claim and state H0 and Ha. (b) Find the critical​ value(s) and identify the rejection​ region(s). ​(c) Find the standardized test statistic z. ​(d) Decide whether to reject or fail to reject the null hypothesis and​ (e) interpret the decision in the context of the original claim.


Extracted text: 7.4.9-1 An education researcher claims that at most 4% of working college students are employed as teachers or teaching assistants. In a random sample of 400 working college students, 6% are employed as teachers or teaching assistants. At a = 0.01, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. Help (a) Identify the claim and state Ho and H. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. More than % of working college students are employed as teachers or teaching assistants. O B. At most % of working college students are employed as teachers or teaching assistants. % of working college students are employed as teachers or teaching assistants. %. O D. The percentage of working college students who are employed as teachers or teaching assistants is not ents sour Click to select and enter your answer(s) and then click Check Answer. Check Answer cess Clear All parts remaining LO