In Fall 2006, 23, 516 students attended De Anza. The distribution of the number
ID: 3179310 • Letter: I
Question
In Fall 2006, 23, 516 students attended De Anza. The distribution of the number of units they attempted is given below. If the number of students were uniformly distributed across the Attempted Units groups, then the expected number of students who take 12.0 - 17.9 units is: When conducting a hypothesis test to determine if the distribution of students follows a uniform distribution, the decision is Do not reject the null Unable to determine Reject the null Ads for ACME light bulbs claim that their light bulbs last at least 300 days, on average. A researcher for a governmental agency doubts their claim and randomly selects 95 bulbs for testing, resulting in the following statistics: x = 298 days. s = 15 days. The distribution to be used for this test is: N(298, 15/V95) N(298. 15) t_94 t_299 Which value is closest to the p-value? 0.9034 0.0985 0.9022 0.0969Explanation / Answer
20.
xbar = 298 days
s = 15 days
D is the right option
21.
Distribution of the test: A. N(298, 15/sqrt(95))
So. Z = (298-300)/(15/sqrt(95)) = -1.3
P(Z=-1.3) = .0969
B is the right option