WebIn a test of H0: µ=75 against HA: µ<75, a sample of size 450 produces Z = -1.19 for the value of the test statistic. Thus the p-value is approximately equal to: arrow_forward In a test of H0:p=0.4 against Ha:p≠0.4, a sample of size 100 produces z=1.28 for the value of the test statistic. Thus the p-value of the test is approximately equal to? WebThe P -value for conducting the left-tailed test H0 : μ = 3 versus HA : μ < 3 is the probability that we would observe a test statistic less than t * = -2.5 if the population mean μ really were 3. The P -value is therefore the area under a tn - 1 = t14 curve and to the left of the …
statistics - Choosing H0 and Ha in hypothesis testing
Webc. a one-tail test should be used. d. No conclusion should be reached. ____ 19. If an economist wishes to determine whether there is evidence that average family income in a community exceeds $32,000: a. either a one-tail or two-tail test could be used with equivalent results. b. a one-tail test should be utilized. c. a two-tail test should be ... WebH0 : p >= 0.3; Ha : p < 0.3 With the rationale that H0 must include the equality, which in this case is greater or equal to 30% . Her solution then failed to reject the null hypothesis and … ossigeno poliatomico liquido
Answered: Consider the following hypothesis test.… bartleby
WebIf an economist wishes to determine whether there is evidence that average family income in a community exceeds $25,000. A. either a one-tailed or two-tailed test could be used … WebStep 1: Hypotheses H0 : μ = 40 vs. Ha : μ > 40 Assumptions: sigma is known, and population is normal Step 2: Test Statistic z = 1.26 Step 3: P-value approach p-value = … WebIn testing the hypothesis H0 : μ = 75 vs Ha : μ 6 = 75, the following information is known ... , 52 households now have the paper delivered. Can we conclude at the 5% level of significance that the ... she decides to perform the appropriate test. If she gathered 40 data and found a sample average of $7090 and std of $560, what would she ... ossi glossy alter