A one-tailed test is a
a. |
hypothesis test in which rejection region is only in the upper tail of the sampling distribution |
|
b. |
hypothesis test in which rejection region is in both tails of the sampling distribution |
|
c. |
hypothesis test in which rejection region is only in the lower tail of the sampling distribution |
|
d. |
hypothesis test in which rejection region is in one tail of the sampling distribution |
Option D is the answer | |
One failed test is a hypothesis test in which the rejection region is in one tail of the sampling distribution. It can either be higher or lower than certain value but cannot be both |
A one-tailed test is a a. hypothesis test in which rejection region is only in the...
In a one-tailed test, the rejection region is located under one tail (left or right) of the corresponding probability distribution, while in a two-tailed test this region is located under both tails. True False Question 8 1 pts The owner of a large car dealership believes that the financial crisis decreased the number of customers visiting her dealership. The dealership has historically had 800 customers per day. The owner takes a sample of 100 days and finds the average number...
The chi-square goodness-of-fit is _________ a one-tailed test with the rejection region in the right tail. always sometimes never
HREE Saved The rejection region in a hypothesis test Multiple Choice -57 is an area in the tail(s) of a sampling distribution. is a consensus formed by trained statisticians. is always set to correspond to a = .05 in the test. is always equal to the p-value in the test. < Prey 34 of 40 Next >
To identify the correct Z(critical), it is important to determine whether the hypothesis test is one-tailed or two-tailed. The decision between a one- and two-tailed hypothesis is based on the researcher's expectations about the population from which the sample was selected. Many people believe that millennials are having more sex than people during the sexual revolution. You wonder whether the cohort currently in their mid-20s have had more sexual partners than older generations. Assume that the the average number of...
In a one-tailed hypothesis test (upper tail), the test statistic is determined to be 2.5. the p-value for this test is a. .0228 b. .0062 c. .0056 d. .5228
(a) For the same data and null hypothesis, is the P-value of a one-tailed test (right or left) larger or smaller than that of a two-tailed test? pick one The P-value for a one-tailed test is smaller because the two-tailed test includes the area in both tails. The P-value for a one-tailed test is larger because the two-tailed test includes the area in only one tail. The P-value for a one-tailed test is larger because the two-tailed test includes the...
1) In hypothesis testing, the region of rejection of the null hypothesis will always be smaller than the region of acceptance of the null hypothesis. True or False? One-sample tests use data drawn from a single sample to test that the sample comes from a specified population. True or False? A study of more than 20,000 mothers of newborns revealed a 10% greater likelihood of purchase by mothers of boys versus mothers of girls. The null hypothesis is: "Mothers of...
Under which condition will the total combined area of the region of rejection be the smallest? (3 pts) A one-tailed z test for means using alpha=.01 A two-tailed z test for means using alpha=.01 A one-tailed z test for means using alpha=.05 A two-tailed z test for means using alpha=.05 A and B C and D
For a one-tailed hypothesis test (upper tail) the p-value is computed to be 0.034. If the test is being conducted at 95% confidence, the null hypothesis Select one: a. is rejected. b. is not rejected. c. could be rejected or not rejected depending on the value of the mean of the sample. d. could be rejected or not rejected depending on the sample size.
A. Critical Values for Hypothesis Tests (o known) a) For an upper tailed hypothesis test when a = .0197, then 2 = b) For a two-tailed hypothesis test when a = 0.0104, then 2a/2= c) For a lower-tailed hypothesis test when a = 0.0132, then-Za = B. Critical Values for Hypothesis Tests (o unknown) a) For an upper tailed hypothesis test at 27 d.f. and a = .025, then ta = b) For a two-tailed hypothesis test at 58 d.f....