An education researcher claims that at most 5% of working college students are employed as teachers or teaching assistants. In a random sample of 600 working college students, 7% are employed as teachers or teaching assistants. At α = 0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. A. The percentage of working college students who are employed as teachers or teaching assistants is not ______%. B. More than ______% of working college students are employed as teachers or teaching assistants. C. At most ______% of working college students are employed as teachers or teaching assistants. D. ______% of working college students are employed as teachers or teaching assistants. (b) Find the critical value(s) and identify the rejection region(s). z0 = _________. (c) Find the standardized test statistic z. 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.
An education researcher claims that at most 5% of working college students are employed as teachers or teaching assistants. In a random sample of 600 working college students, 7% are employed as teachers or teaching assistants. At α = 0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below.
(a) Identify the claim and state H0 and Ha.
Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice.
A. The percentage of working college students who are employed as teachers or teaching assistants is not ______%.
B. More than ______% of working college students are employed as teachers or teaching assistants.
C. At most ______% of working college students are employed as teachers or teaching assistants.
D. ______% of working college students are employed as teachers or teaching assistants.
(b) Find the critical value(s) and identify the rejection region(s).
z0 = _________.
(c) Find the standardized test statistic z.
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.
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