Pearson's r is a unique calculated test statistic in that it is always a number between:
Group of answer choices
0 and 1
Z and T
-1.96 and +1.96
-1.00 and +1.00
In this
The Pearson's correlation coefficient is always a number between -1.00 and +1.00
Pearson's r is a unique calculated test statistic in that it is always a number between:...
The test statistic for a correlation test is: Group of answer choices X and Y Pearson's r Pearson's chi-square Z and T
Pearson's r measures what two components of a relationship between variables? Group of answer choices Strength and direction Predictions and real values Strength and magnitude Power and effect
1b)The value of the standardized test statistic is: Group of answer choices a) 1.00 b) 5.00 c) None of the above d) -5.00 e) -1.00 1c)Find the rejection region and state your conclusion at \alphaα = 0.05. Group of answer choices a) Reject region: t < -1.711; Decision: Fail to reject H0 b) Reject region: z > 1.645; Decision: Reject H0 c) Reject region: t < -2.064 or z > 2.064; Decision: Reject H0 d) Reject region: t > 1.711;...
When conducting a hypothesis test concerning the population proportion, the value of the test statistic is calculated as ____________.rev: 07_06_2018_QC_CS-130873Multiple Choicez=x−−μoσ/n√tdf=x−−μos/n√z=p−−popo(1−po)n√tdf=p−−popo(1−po)n√
Many elementary school students in a school district currently have ear infections. A random sample of children in two different schools found that 16 of 42 at one school and 18 of 34 at the other have ear infections. At the 0.05 level of significance, is there sufficient evidence to support the claim that a difference exists between the proportions of students who have ear infections at the two schools? Group of answer choices A. Yes, because the test statistic...
Who misses work more often at the ABC Company? Smokers or non-smokers? Test at .05 significance level. (3 Part Question) Summary statistics are: Smokers: Average number of days absent = 14.7; standard deviation = 5.0; n = 44 Non-Smokers: Average number of days absent = 8.3; standard deviation = 4.0; n = 60 A) Suppose you want to do a 2-tailed test. What's the critical value and region of rejection? Z = 1.96 Z = 1.645 Z > 1.96 or...
Emile has calculated a one-tailed z-statistic of -1.97 and wants to see if it is significant at the 5% significance level. What is the critical value for the 5% significance level? Answer choices are rounded to the hundredths place. -1.64 0 -2.33 -1.04
1b) The test statistic is closest to: Group of answer choices: a) t = -0.64 b) t = 0.64 c) t = 2.77 d) t = -2.77 e) t = 3.5 1c) The rejection region for the test is closest to: Group of answer choices: a) (-\infty ∞ , -1.729] \cup ∪ [1.729, \infty ∞ ) b) (-\infty ∞ , -1.645] \cup ∪ [1.645, \infty ∞ ) c) (-\infty ∞ , -1.645] d) (-\infty ∞ , -1.734] e) (-\infty ∞...
You can use both the t-statistic and the Z-statistic to test hypotheses about the mean of a population. The test that uses the t-statistic is typically referred to as a t test, while the test that uses the z-statistic is commonly called a z test. IO Which of the following statements are true of the t-statistic and the t distribution? Check all that apply. The formula for the t-statistic is t = (x - 1) / s/vn. When the population...
1.You are performing a left-tailed z-test If α=.005α=.005, and your test statistic is z=−2.59, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis You are performing a left-tailed z-test If α=.10, and your test statistic isz=-2.01, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis You are performing a right-tailed t-test with a sample size of 15 If α=.01, and your test statistic is t=3.02t=3.02, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis You are performing...