When you conduct a t test for independent means, ____.
Group of answer choices
you reject the null hypothesis if the t score is more extreme than the cutoff (criterion) t score
you need to make sure that the medians of the two populations are equal
you need to make sure that the two sample sizes are exactly the same
you should only use an alpha level of .01 because of the lower power of this test compared to dependent-means t test
While conducting a t-test for independnet means, we calculate the t-statistic or t-score and reject the null hypothesis H0 if the t-score is greater than the critical/cutoff value.
Hence 1st option.
When you conduct a t test for independent means, ____. Group of answer choices you reject...
You conduct a hypothesis test for the population mean. After you calculate the t test statistic, you find that your p-value = 0.04. Using alpha (a) = 0.01 level of significance, what is your decision regarding the null hypothesis? (either reject Ho and accept Ha, or fail to reject Ho)
1) Select the answer with the correct choices for scenarios A and B regarding the null hypothesis (H0). Scenario A - If we have chosen an alpha (α) of .05 for a two tailed test and our Z obtained is 1.70, what decision do we make regarding the null hypothesis (H0)? Scenario B - If we have chosen an alpha (α) of .01 for a left tailed test and our Z obtained is -2.24, what decision do we make regarding...
T-test Unit 85 AS: T-tests In this test you will conduct and interpret T-tests using hypothesis testing and the SPSS progrem. Students will follow the hypothesis testing steps for each probiem. They will compute the problem using the SPSS program. They will write the results in appropriate APA format and interpret the results Steps of hypothesis testing will be typed out in a word document, as well as a copy and paste of the SPSS output For the following problems,...
QUESTION 11 You run an independent samples t-test between two groups, and find a t-statistic of t=1.67. Is this sufficient to reject the null hypothesis? Assume α=0.05 and a one-sided test. Yes, > 1.67 is sufficient to reject the null. No, > 1.67 is not sufficient to reject the null. Not enough information. 2 points QUESTION 12 In a dependent samples t-test, the sample sizes must be equal. True False 2 points QUESTION 13 In an independent samples...
Difference of Means Test. A sample of seniors taking the SAT in Connecticut in 2015 revealed the following results for the math portion of the exam by Gender. The conclusion of a hypothesis test that the mean the SAT Math scores for males and females are different at the .01 level of alpha is to fail to reject the Null Hypothesis. Note: the sample sizes are large and I will allow you to use a z-value for the critical value....
When you conduct a significance test, what does the probability value tell you, exactly? the probability of replication the probability of observing a trend this extreme or more, assuming the null hypothesis is true the probability that the alternative hypothesis is true the probability that the null hypothesis is true the probability that the null hypothesis is false the probability that the alternative hypothesis is false
data Conduct an independent samples t-test (a.k.a., between-subjects design). Each sample should have at least n=8 individuals. What to turn in: 1. What is your research question? 2. State the null (Ho) and alternative (H1) hypotheses. 3. Conduct the hypothesis test using an alpha level of .05, and state your conclusion (Reject Ho/Fail to Reject Ho) regarding the original hypotheses. 4. Calculate and interpret a measure of effect size (est. Cohen's d or r2) and a 95% confidence interval. Subject...
Data Conduct an independent samples t-test (a.k.a., between-subjects design). Each sample should have at least n=8 individuals. What to turn in: 1. What is your research question? 2. State the null (Ho) and alternative (H1) hypotheses. 3. Conduct the hypothesis test using an alpha level of .05, and state your conclusion (Reject Ho/Fail to Reject Ho) regarding the original hypotheses. 4. Calculate and interpret a measure of effect size (est. Cohen's d or r2) and a 95% confidence interval. Subject...
You are conducting a two independent samples t-test of the population means with a two-sided Hawith =0.05. The sample sizes are n1=35 and n2=45. The p-value of your test is 0.003. What is your decision? O Do Not Reject Ho Reject Ho
i need help with this question, please show work by hand no excel, spss thank you ! Assume you're using an alpha of 05, and a two-tailed test, to make your decision about whether to reject the null hypothesis. Assume that 18 subjects received one of three treatments and produced the data reported in Data Set B. Conduct a one-way ANOVA to see if the means of the three treatments are different on a statistically significant level. Complete an ANOVA...