In a two tailed (non-directional) t-test, if the null hypothesis is true, what is the t value ? 0? 10? -2? or not equal to 0?
In a two tailed (non-directional) t-test, if the null hypothesis is true, what is the t...
If a researcher conducted a 2-tailed , non-directional hypothesis test with an alpha leve4l of .02 , what would be the corresponding critical value z-score(s)? a. -2.32 b.+2.325 and -2.325 c. +1.96 and -1.96 d. +2.055 and -2.055
In a t-test Luke decided to use a two tailed alpha=0.05. If, the null hypothesis is true, what is the probability of making a type I Error? 0.1 0.05 0.95 not enough information
45. If a sign test is applied, what is the null hypothesis for a two-tailed test? B. H is not equal to 0.50 A H, = 0.50 CH, : > 0.50 pH, 11 <0.50
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?
All things being equal, when we have a two-tailed Alternative Hypothesis test it is easier to reject the Null Hypothesis (when compared to a one-tailed test). True False
What is the critical t value (one sample t-test) for a non directional hypothesis with an alpha level of .05 and a sample size of 30? A. t-critical is 1.699 B. t critical is 2.045 C. t critical is 2.042 D. t critical is 2.457
Question 2In one tailed T-test, if the test statistics is \(\mathrm{t}\) and \(\mathrm{t}_{0}\) is the t-value under null hypothesis, then \(\mathrm{p}\) -value \(=\operatorname{Pr}\left(\mathrm{t}<\mathrm{t}_{0} \mid\right.\) null hypothesis is true) if \(\mathrm{t}_{0}>0\) and p-value \(=\operatorname{Pr}\left(t>t_{0} \mid\right.\) null hypothesis is true) if \(t_{0}<0\).Question 3In a recent twin study from researchers at King's College London, the researchers wanted to first test whether identical twins show statistically significantly different thigh muscular power. To test this, they recruited 20 identical female twins. For this analysis,one-way ANOVA...
Determine a left-tailed, right-tailed, or two-tailed test from a given null and alternative hypothesis. David hypothesize that the average age of the population of Wyoming is less than 45 years. David records a sample mean equal to 42 and states the hypothesis as = 45 vs < 45. Select the best description for this type of test. a.) Two-tailed test b.) Left-tailed test c.) Upper-tailed test d.) Right-tailed test
Compared to a two-tailed hypothesis test, a one-tailed test is more likely to detect a: Group of answer choices true null hypothesis in the direction of concern false null hypothesis in the direction of concern false null hypothesis true null hypothesis
He uses a two-tailed hypothesis test when the null hypothesis is similar to the following: H0: x bar = 100. Select one: True False