Suppose that we are to conduct the following hypothesis test: H0:p=0.34 H1:p≠0.34 Sampling lead to a test statistic of zc=−2.14 1)The p-value is For α=0.01, what would be the decision for the hypothesis test? A. Do Not Reject H0. B. Reject H1. C. Reject H0. D. Do Not Reject H1.
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Suppose that we are to conduct the following hypothesis test:
H0:p=0.34
H1:p≠0.34
Sampling lead to a test statistic of zc=−2.14
1)The p-value is
For α=0.01, what would be the decision for the hypothesis test?
A. Do Not Reject H0.
B. Reject H1.
C. Reject H0.
D. Do Not Reject H1.
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- f our null hypothesis is H0: ? = 40, what are the three possiblealternative hypotheses?3) Given the following null and alternative hypothesis test: H0: µ ≥ 210 HA: µ < 210 If α = 0.025 with n = 25, s = 9, and x = 208.2, then a. state the decision rule in terms of the critical value of test statistic. b. calculate the value of the test statistic. c. state the conclusion. 4) In the following null and alternative hypotheses H0 : =68 and H A : 68 , = 0.02 , x = 69.02 , = 5.4 and n = 40 a. State the decision rule in terms of the critical value of the test statistic. b. State the calculated value of the test statistic. c. State the conclusion. d. Compute the p-value. Does its value support the claim obtained in part a justify? 5) A company claims that the coffee contents in a bottle of coffee are at least 200 grams. To test their claim, a random sample of 20 bottles was taken and it was found that the mean contents in the sample were 190 grams with a sample standard deviation of 5 grams. At 0.01 level of significance, test H0: µ ≥ 200 against the alternative…For a one-tailed hypothesis test with α = .01 and a sample of n= 28 scores, the critical t value is either t = +2.473 or t= -2.473. True or False
- Which of the following statements most adequately summarizes the conclusion statement resulting from a p-value of 0.04 ? Group of answer choices We reject the null hypothesis at the alpha level of 0.05. But we cannot differentiate between the null hypothesis is truly wrong and we are making a type I error We reject the null hypothesis at the alpha level of 0.05. But we cannot differentiate between the null hypothesis is truly wrong and we are making a type II error We fail to reject the null hypothesis at the alpha level of 0.05 We can conclude that the null hypothesis is truly wrongIf the critical t is ±1.796 and the obtained t is -2.09, what decision would you make regarding the null hypothesis?If, in a sample of n=20 selected from a normal population, X=59and S=12, what are the critical values of t if the level of significance, α, is 0.05, the null hypothesis, H0, is μ=50, and the alternative hypothesis, H1, is μ≠50? The critical values of t are
- In a given hypothesis test, the null hypothesis cannot be rejected at the 0.005 and the 0.01 level of significance, but can be rejected at the 0.03 level. The most accurate statement about the p−value for this test is: A. p-value<0.005B. 0.005<p-value<0.03C. 0.01<p-value<0.03D. p-value>0.03E. p-value=0.01F. 0.005<p-value<0.01For c is the null hypothesis rejected?The null hypothesis H0 maintains the status quo, while the alternate hypothesis Ha seeks to change the status quo. Label the pair members as null or alternate hypotheses.
- A toy manufacturer claims that the meantime that its top-selling toy captures children's attention is at least 20 minutes. Suppose that we doubt this claim and we carry out a hypothesis test to see if we can refute the claim. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.When is a researcher at risk of making a Type II error? a. whenever H0 is rejected b. whenever H1 is rejected c. whenever H0 fails to be rejected d. The risk of a Type II error is independent of the decision from a hypothesis test.A certain university claims that for the last school year the proportion of students who were not able to earn a college diploma is at most 25%. What is the null hypothesis? a. Proportion is greater than or equal to 0.25.b. Proportion is less than or equal to 0.25.c. Proportion is equal to 0.25.d. Proportion is not equal to 0.25.