1ᏟᎻcᎺᎺᎺᎻ 2.H,0 CH.CH ᎻgᏚ04 , H, SO4 H0 0, 2 , ( CH 3 ᏂᏚ
suggest reagents to accomplish the transformation... please do not use the reagent DIBAL-H (: 5-0 H0-0 oba A.
H0 : beta1 = 0 versus Halpha: beta1 != 0. N=18, t= -2.583. What is the P-value of the test? A. .01 B. .02 C. .025 D. .05 E. .99
1) The one-sample t-statistic for testing H0: μ = 0 Ha: μ > 0 from a sample of n=20 is t=1.84 a. What are the degrees of freedom for this statistic? b. What are the two critical values of t* that bracket t= 1.84 from the t-table? c. Is the value t=1.84 significant at both the 5% and 1% level?
H,SO HO 1. BHTHF 2. HẠO, NaOH ou H,SO H0 1. Hg(OAc),,H,O 2. NaBH H.PO H.0 Draw the mechanisms of each of the reactions including all electrons and arrow pushing
In a one-tailed t-test, the null hypothesis is H0: population β1≥0. If the test statistic = – 1.529, and the critical value you find from the t-table is 2.164, do you reject the null hypothesis?
Multiple Choice: In testing the hypotheses H0: B1 = 0 vs. Ha: B1 ≠ 0 with alpha = 0.05, the calculated value of our test statistic is T = 3.45. The critical value from our t-table is t0.025 = 2.306. What conclusion should be made? a) Do not reject H0, there is evidence that X contributes information to the prediction of Y. b) Reject H0, there is evidence that X contributes information to the prediction of Y. c) Do not...
Suppose we do not reject the t-test null hypothesis of H0: β1 = 0 for a regression. In this case, we think there is evidence that the X variable values help explain the Y variable values. True or False
Consider the following hypothesis test: H0: ?1 - ?2 = 0 H?: ?1 - ?2 ? 0 And the following results: Sample 1 Sample 2 n1 = 80 n2 = 70 xbar1 = 104 xbar2= 106 ?1 = 8.4 ?2 = 7.6 a. What is the value of the test statistic? Answer: b. What is the p-value? Answer: c. With ? = .05, can you reject the null hypothesis? Answer: yes or no
For a correlated groups t test, the null hypothesis states that _____. H0: μ1 - μ2 = 0 H0: μ1 - μ2 > 0 Ha: μ1 - μ2 = 0 Ha: μ1 - μ2 = 0