In ANOVA test, if the F test statistics is larger than or equal to the critical...
In ANOVA test, if the F test statistics is larger than or equal to the critical value, we should reject the null hypothesis. True False
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In ANOVA test, if the F test statistics is larger than or equal
to the critical...
Select the true statement regarding the F-statistic of an ANOVA test. a.) The larger the F value,...
Select the true statement regarding the F-statistic of an ANOVA test. a.) The larger the F value, the more likely it is to reject the null hypothesis b.) The smaller the F value, the more likely it is to reject the null hypothesis. c.) The smaller the F value, the greater the variation between individual samples. d.) The larger the F value, the more likely it is to fail to reject the null hypothesis.
Find the critical F-value for a one-way ANOVA given: α = 0.01 dfb = 30 dfw...
Find the critical F-value for a one-way ANOVA given: α = 0.01 dfb = 30 dfw = 14 a. 2.72 b. 3.34 c. 4.21 d. 1.98 e. 3.00 In which direction is the F distribution skewed? a. Positively skewed b. Negatively skewed c. No skew If our calculated F is LARGER than our identified critical value from the F-table, what decision would we make about the null hypothesis? a. Reject the null hypothesis b. Fail to reject (i.e., retain) the...
In one tailed T-test, if the test statistics is
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...
6. We want to test whether there is an equal ratio of freshman to sophomores to...
6. We want to test whether there is an equal ratio of freshman to sophomores to juniors to seniors at UC Davis. I perform a Goodness of Fittest and to reject the null hypothesis then a. the sample distribution was extremely uneven across dasses b. we conclude that the ratio in the null hypothesis is plausible c. we know the test statistic was larger than the critical value d. we know the degrees of freedom for the test was 7....
Which of the following is TRUE? a. The p-value should always be larger than the selected level of significance....
Which of the following is TRUE? a. The p-value should always be larger than the selected level of significance. b. If the p-value is smaller than the level of significance, then do not reject the alternate hypothesis. c. If we reject the null hypothesis, it is possible that p-value is larger than the selected level of significance. d. If the p-value is larger than the level of significance, then do not reject the null hypothesis.
Test the claim that the mean GPA of night students is larger than 3 at the...
Test the claim that the mean GPA of night students is larger than 3 at the .025 significance level. Based on a sample of 15 people, the sample mean GPA was 3.05 with a standard deviation of 0.02, find the following to 4 decimal places: t-statistic and p-value Do we reject the null hypothesis, or fail to reject the null hypothesis?
Test the claim that the proportion of people who own cats is larger than 20% at...
Test the claim that the proportion of people who own cats is
larger than 20% at the 0.005 significance level.
The null and alternative hypothesis would be:
H0:μ≤0.2H0:μ≤0.2
Ha:μ>0.2Ha:μ>0.2
H0:μ≥0.2H0:μ≥0.2
Ha:μ<0.2Ha:μ<0.2
H0:p≤0.2H0:p≤0.2
Ha:p>0.2Ha:p>0.2
H0:p≥0.2H0:p≥0.2
Ha:p<0.2Ha:p<0.2
H0:p=0.2H0:p=0.2
Ha:p≠0.2Ha:p≠0.2
H0:μ=0.2H0:μ=0.2
Ha:μ≠0.2Ha:μ≠0.2
The test is:
left-tailed
two-tailed
right-tailed
Based on a sample of 100 people, 26% owned cats
The p-value is: (to 2 decimals)
Based on this we:
Fail to reject the null hypothesis
Reject the null hypothesis
Test the claim that the proportion...
please show all work and graphs SUMMARY OUTPUT Regression Statistics 0.989894408 Multiple R R Square 0.97989094 0.946375839 Adjusted R Square Standard Error 0.093997207 Observations ANOVA F Sign...
please show all work and graphs
SUMMARY OUTPUT Regression Statistics 0.989894408 Multiple R R Square 0.97989094 0.946375839 Adjusted R Square Standard Error 0.093997207 Observations ANOVA F Significance F MS 5 1.291627011 0.258325402 29.23729686 0.009507436 Regression Residual Total 3 0.026506425 0.008835475 8 1.318133436 Coefficients Standard Error Stat 2.000000 1.000000 1.000000 0.199040522 12.23566447 0.001175553 1.801957267 3.068828814 0.116964675 7.144529794 0.005645963 0.46342381 1.207891408 0.221410557 -4.794091072 0.017265888 -1.766089586 -0.356835166 0.115122597 -2.041317871 0.133876794 -0.601373298 0.131369669 0.500000 0.130770483 -4.049701664 0.027116334 0.945751481 -0.113411402 Intercept GPA Fin Major Gender...
Test the claim that the mean GPA of night students is larger than 2.6 at the...
Test the claim that the mean GPA of night students is larger than 2.6 at the .10 significance level. The null and alternative hypothesis would be: H0:p=0.65H0:p=0.65 H1:p<0.65H1:p<0.65 H0:p=0.65H0:p=0.65 H1:p>0.65H1:p>0.65 H0:μ=2.6H0:μ=2.6 H1:μ<2.6H1:μ<2.6 H0:μ=2.6H0:μ=2.6 H1:μ>2.6H1:μ>2.6 H0:μ=2.6H0:μ=2.6 H1:μ≠2.6H1:μ≠2.6 H0:p=0.65H0:p=0.65 H1:p≠0.65H1:p≠0.65 The test is: left-tailed right-tailed two-tailed Based on a sample of 50 people, the sample mean GPA was 2.61 with a standard deviation of 0.02 The test statistic is: (to 2 decimals) The critical value is: (to 2 decimals) Based on this we: Reject...
Interpretation of the t-statistics in a t-test given a critical value. For example, while performing a...
Interpretation of the t-statistics in a t-test given a critical value. For example, while performing a t-test to compare two groups, you obtain a t-statistics of 3.56 If th e critical value is 3.1, do you reject or accept the null hypothesis? Based on this information, are the groups the same or different on the average?
Select the true statement regarding the F-statistic of an ANOVA test. a.) The larger the F value, the more likely it is to reject the null hypothesis b.) The smaller the F value, the more likely it is to reject the null hypothesis. c.) The smaller the F value, the greater the variation between individual samples. d.) The larger the F value, the more likely it is to fail to reject the null hypothesis.
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...
6. We want to test whether there is an equal ratio of freshman to sophomores to juniors to seniors at UC Davis. I perform a Goodness of Fittest and to reject the null hypothesis then a. the sample distribution was extremely uneven across dasses b. we conclude that the ratio in the null hypothesis is plausible c. we know the test statistic was larger than the critical value d. we know the degrees of freedom for the test was 7....
Test the claim that the proportion of people who own cats is
larger than 20% at the 0.005 significance level.
The null and alternative hypothesis would be:
H0:μ≤0.2H0:μ≤0.2
Ha:μ>0.2Ha:μ>0.2
H0:μ≥0.2H0:μ≥0.2
Ha:μ<0.2Ha:μ<0.2
H0:p≤0.2H0:p≤0.2
Ha:p>0.2Ha:p>0.2
H0:p≥0.2H0:p≥0.2
Ha:p<0.2Ha:p<0.2
H0:p=0.2H0:p=0.2
Ha:p≠0.2Ha:p≠0.2
H0:μ=0.2H0:μ=0.2
Ha:μ≠0.2Ha:μ≠0.2
The test is:
left-tailed
two-tailed
right-tailed
Based on a sample of 100 people, 26% owned cats
The p-value is: (to 2 decimals)
Based on this we:
Fail to reject the null hypothesis
Reject the null hypothesis
Test the claim that the proportion...
please show all work and graphs
SUMMARY OUTPUT Regression Statistics 0.989894408 Multiple R R Square 0.97989094 0.946375839 Adjusted R Square Standard Error 0.093997207 Observations ANOVA F Significance F MS 5 1.291627011 0.258325402 29.23729686 0.009507436 Regression Residual Total 3 0.026506425 0.008835475 8 1.318133436 Coefficients Standard Error Stat 2.000000 1.000000 1.000000 0.199040522 12.23566447 0.001175553 1.801957267 3.068828814 0.116964675 7.144529794 0.005645963 0.46342381 1.207891408 0.221410557 -4.794091072 0.017265888 -1.766089586 -0.356835166 0.115122597 -2.041317871 0.133876794 -0.601373298 0.131369669 0.500000 0.130770483 -4.049701664 0.027116334 0.945751481 -0.113411402 Intercept GPA Fin Major Gender...
Interpretation of the t-statistics in a t-test given a critical value. For example, while performing a t-test to compare two groups, you obtain a t-statistics of 3.56 If th e critical value is 3.1, do you reject or accept the null hypothesis? Based on this information, are the groups the same or different on the average?
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