You're running a one-sample t-test comparing your sample (? = 30.5, ?? = 1.2) of 21 observations with a population that has μ = 29.6 at ? = 0.01. Calculate ?_???_____ , your confidence interval:_____ to________ , and your decision regarding the null hypothesis (reject/fail to reject):______

You're running a one-sample t-test comparing your sample (? = 30.5, ?? = 1.2) of 21...
You're running a one-sample t-test comparing your sample (? = 38.4, ?? = 4.6) of 27 observations with a population that has μ = 39.7 at ? = 0.001. Calculate ?_??? ________ , your confidence interval: ______ to ______ , and your decision regarding the null hypothesis (reject/fail to reject):__________
A researcher runs a one-sample, one-sided t-test, and finds that t = 1.93, df = 21, α = .05, where: H 0: μ = 12 H 1: μ > 12 What decision should be made regarding the hypothesis? -Reject the null hypothesis. -Reject the alternative hypothesis. -Fail to reject the null hypothesis. -Fail to reject the alternative hypothesis.
The one-sample t statistic from a sample of n = 21 observations for the two-sided test of H0: μ = 60, Ha: μ ≠ 60 has the value t = –1.98. Based on this information: we would reject the null hypothesis at α = 0.05. All of the answers are correct. 0.025 < P-value < 0.05. we would reject the null hypothesis at α = 0.10
The one-sample t statistic from a sample of n = 21 observations for the two-sided test of H0: μ = 60, Ha: μ ≠ 60 has the value t = –1.98. Based on this information: 0.025 < P-value < 0.05. All of the answers are correct. we would reject the null hypothesis at α = 0.10. we would reject the null hypothesis at α = 0.05.
You conduct a hypothesis test for the population mean. After you calculate the t test statistic, you find that your p-value = 0.04. Using alpha (a) = 0.01 level of significance, what is your decision regarding the null hypothesis? (either reject Ho and accept Ha, or fail to reject Ho)
A sample of 37 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.02 significance level. H0: μ ≤ 20 H1: μ > 20 Is this a one- or two-tailed test? One-tailed test Two-tailed test What is the decision rule? Reject H0 when z > 2.054 Reject H0 when z ≤ 2.054 What is the value of the test statistic? (Round your...
You are performing a left-tailed t-test with a sample size of 21. If α=.05α=.05, and your test statistic is t=−2.89t=-2.89, do you: fail to reject the null hypothesis reject the null hypothesis You will either want to either: Calculate the critical value and compare the test statistic to it. Calculate the p-value and compare it to the significance.
Test the claim about the population mean μ at the level of significance α. Assume the population is normally distributed. Write out null and alternative hypotheses, your critical t-score and your t-test statistic. Decide whether you would reject or fail to reject your null hypothesis. Test the claim about the population mean μ at the level of significance α. Assume the population is normally distributed. Write out null and alternative hypotheses, your critical t-score and your t-test statistic Claim μ...
#3 Given the following hypotheses: H0: μ = 520 H1: μ ≠ 520 A random sample of 18 observations is selected from a normal population. The sample mean was 529 and the sample standard deviation was 5. Using the 0.01 significance level: State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) Compute the value of the test statistic. (Round your answer to 3 decimal places.) What is your decision...
A sample of 36 observations is selected from a normal population. The sample mean is 49, and the population standard deviation is 5. Conduct the following test of hypothesis using the 0.05 significance level.H0: μ = 50H1: μ ≠ 50Is this a one- or two-tailed test?One-tailed testTwo-tailed test doneWhat is the decision rule?Reject H0 if −1.96 < z < 1.96Reject H0 if z < −1.96 orz > 1.96 doneWhat is the value of the test statistic? (Negative amount should be...