If, in a sample of n=20 selected from a normal population, overbar X=54 and S=8, what...
If, in a sample of n=20 selected from a normal population, overbar X=54 and S=8, what are the critical values of t if the level of significance, α, is 0.10, the null hypothesis, H0, is μ=50, and the alternative hypothesis, H1, is μ≠50?
The critical values of t are ±
(Round to four decimal places as needed.)
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If, in a sample of n=20 selected from a normal population,
overbar X=54 and S=8, what...
If, in a sample of n = 16 selected from a normal population, x bar =...
If, in a sample of n = 16 selected from a normal population, x bar = 57, and s = 8, what are the critical values of t if the level of significance, is .01, the null hypothesis h0 is mu = 50, and the alternative hypothesis H1 is mu is not equal to 50. The critical values of t are +/- ___ , ____.
If, in a sample of n = 16 selected from a normal population, X = 53...
If, in a sample of n = 16 selected from a normal population, X = 53 and S = 12, what are the critical values of t if the level of significance, a, is 0.01, the null hypothesis, Ho, is u = 50, and the alternative hypothesis, Hy, is u #50? Click here to view page 1 of the critical values for the t Distribution. Click here to view page 2 of the critical values for the t Distribution, The...
in a sample of n = 30 selected from a normal population, X=57 and S=20, what...
in a sample of n = 30 selected from a normal population, X=57 and S=20, what is your statistical decision if the level of significance, a, is 0.10, the null hypothesis, Hois - 50, and the alternative hypothesis, Hy is 750? Click here to view page 1 of the table of the critical values of Click here to view page 2 of the table of the critical values of Determine the critical value(s) The critical value(s) is (are) (Round to...
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The observations from a random sample of n = 6 from a normal population are: 13.15, 13.72, 12.58, 13.77, 13.01, 13.06. Test the null hypothesis of H0:μ=13 against the alternative hypothesis of H1:μ<13. Use a 5% level of significance. Answer the following, rounding off your answer to three decimal places. (a) What is the sample mean? (b) What is the sample standard deviation? (c) What is the test statistic used in the decision rule? (d) Can the null hypothesis be...
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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 = 50 H1: μ ≠ 50 Q. Interpret the p-value? (Round your z value to 2 decimal places and final answer to 2 decimal places.)
A sample of 35 observations is selected from a normal population. The sample mean is 20,...
A sample of 35 observations is selected from a normal population. The sample mean is 20, and the population standard deviation is 2. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 19 H1: μ > 19 What is the value of the test statistic? (Round your answer to 2 decimal places.) What is the p-value? (Round your answer to 4 decimal places.) e-2. Interpret the p-value? (Round your final answer to 2 decimal places.)
A sample of 48 observations is selected from a normal population. The sample mean is 22,...
A sample of 48 observations is selected from a normal population. The sample mean is 22, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 21 H1: μ > 21 What is the p-value? (Round your answer to 4 decimal places.)
A random sample of n=25 is obtained from a population with variance σ^2, and the sample...
A random sample of n=25 is obtained from a population with variance σ^2, and the sample mean is computed. Test the null hypothesis H0 : μ = 110 versus the alternative hypothesis H1: μ>110 with α=0.01. Compute the critical value (Xc overbar) and state your decision rule for the options below. a. The population variance is σ^2=256. b. The population variance is σ^2=400. c. The population variance is σ^2=900. d. The population variance is σ^2=500.
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A sample of 31 observations is selected from a normal population. The sample mean is 23, and the population standard deviation is 2. Conduct the following test of hypothesis using the 0.10 significance level. H0 : μ ≤ 22 H1 : μ > 22 A.) Is this a one- or two-tailed test? B.) What is the decision rule? C.) What is the value of the test statistic? (Round your answer to 2 decimal places.) D.) What is your decision regarding...
A sample of 40 observations is selected from a normal population. The sample mean is 20,...
A sample of 40 observations is selected from a normal population. The sample mean is 20, and the population standard deviation is 2. Use the 0.05 significance level. H0 : μ ≤ 19 H1 : μ > 19 A) what is the value of the test statistics? ( round answer to 2 decimal places) B) what is your decision regarding H0? Fail to reject or reject C) what is the p- value? ( round your answer to 4 decimal...
If, in a sample of n = 16 selected from a normal population, X = 53 and S = 12, what are the critical values of t if the level of significance, a, is 0.01, the null hypothesis, Ho, is u = 50, and the alternative hypothesis, Hy, is u #50? Click here to view page 1 of the critical values for the t Distribution. Click here to view page 2 of the critical values for the t Distribution, The...
in a sample of n = 30 selected from a normal population, X=57 and S=20, what is your statistical decision if the level of significance, a, is 0.10, the null hypothesis, Hois - 50, and the alternative hypothesis, Hy is 750? Click here to view page 1 of the table of the critical values of Click here to view page 2 of the table of the critical values of Determine the critical value(s) The critical value(s) is (are) (Round to...
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