Read the t-distribution table and answer the following: For a two-tailed hypothesis testing with 36 degrees of freedom using LaTeX: \alphaα=0.05, the critical value (-/+) LaTeX: t_\frac{\alpha}{2}t α 2 = ____.
solution
Degrees of freedom = df =36
= 0.05
/ 2= 0.05 / 2 = 0.025
t /2,df = t0.025,36 =2.028 ( using student t table)
Read the t-distribution table and answer the following: For a two-tailed hypothesis testing with 36 degrees...
You are conducting a two-tailed hypothesis test to see if your sample mean (x̄) differs significantly from your population mean (μ = 50). Your alpha level is 0.05 (α = 0.05). Sample data: 53, 56, 59, 64, 55, 42, 36, 58, 39, 53, 62, 60, 64, 53, 42, 53, 65, 60, 61, 63 You will need to: h) State your alternative hypothesis and null hypothesis i) Calculate the sample mean (x̄) j) Calculate the sample standard deviation (s) k) Calculate...
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Question 11 3 pts For this problem you will need a t-table. What is the t-value needed for the critical value for a two- tailed hypothesis test with degrees of freedom = 15 and alpha = 10? +/- 1.753 +/- 2.624 +/- 1.341 +/- 1.761
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Use the following data and conduct a two-tailed hypothesis test using a = .05. a. What are EX, EY, (EX)(EY)? b. What is 2.XY? c. What are your hypotheses? d. What are your degrees of freedom? e. What is the critical value? f. What is the value of Pearson r? g. What do you conclude? Reading Speed Test Score Number of Books Read Participant TO 12 9119 a $ 4 10
Question 12 3 pts For this problem you will need a t-table. What is the t-value needed for the critical value for a two-tailed hypothesis test with degrees of freedom = 15 and alpha = 10? 0 +/- 1.753 0 +/- 1.341 0 +/- 2.624 0 +/- 1.761
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The Student's t distribution table gives critical values for the Student's t distribution. Use an appropriate d.f. as the row header. For a right-tailed test, the column header is the value of α found in the one-tail area row. For a left-tailed test, the column header is the value of α found in the one-tail area row, but you must change the sign of the critical value t to −t. For a two-tailed test, the column header is the value...