Post an example of a scenario that would warrant either a one-sample or a two-sample test. This can be a hypothetical example.
Please state H0 and H1 and explain why your hypothetical example qualifies as either a one- or two-sample test. (Please recognize that one- and two-sample tests are not the same as one- or two-tail tests.) Also, clearly state the reason(s) this hypothesis test would be conducted. You do not actually have to complete the hypothesis test steps.
Post an example of a scenario that would warrant either a one-sample or a two-sample test....
One-Sample Test Test Value = 1 t df Sig. (2-tailed) Mean Difference 95% Confidence Interval of the Difference Lower Upper What is your gender? -11.787 79 .000 -.637 -.75 -.53 Hypothetical exam scores (out of 100) 98.022 79 .000 84.438 82.72 86.15 Which of the following is the null hypothesis? Highlight or circle your answer. [.5 points] a) H0: µ1 = µ2 b) H1:...
Researchers claim that getting a good nights sleep has an effect on test scores. A sample of 12 student’s grades were recorded for two exams, one for which they got a a full eight hours of sleep and one for which they only got 4 hours of sleep. Using a 0.05 level of significance, test the claim that the sleep has an effect on exam scores. (a) State the claim, null hypothesis, and alternative hypothesis. Claim: H0: H1: (b) Given...
Steps to be covered: state the hypothesis and identify the claim find the critical value from the table and mention the acceptance range for H0 compute the test value make the decision to reject or not the null hypothesis Claim tests are two-tail tests only if you have to test for strict equality; If the claim says “at least”, “less”, “at most”, “no more than”….. it means that a one-tail test should be performed A college wants to know the...
#3. In the following studies, state whether you would use a one-sample t test or a two-independent-sample t test. A. A study testing whether night-shift workers sleep the recommended 8 hours per day B. A study measuring differences in attitudes about morality among Democrats and Republicans C. An experiment measuring differences in brain activity among rats placed on either a continuous or an intermittent reward schedule PLEASE EXPLAIN MORE CLEARLY. THANK YOU!
What is the scenario when performing an independent Sample t Test is required? Assume that a researcher interested in growth spurts among young teens decided to measure the height difference between boys and girls in middle school from a random sample of 200 boys and girls. In this study, what are the two variables of interest and which of the two variables is dependent variable and the other is the dependent variables? In the above scenario, state the null and...
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Use either the traditional method or P-value method as indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P-value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim. -------------------------------- QUESTION: Use a significance level of ΅ = 0.05 to test the claim that µ = 32.6. The sample data consist of...
Consider the following hypothesis test. H0: μ ≤ 50 Ha: μ > 50 A sample of 60 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use α = 0.05. (Round your answers to two decimal places.) (a)x = 52.5 Find the value of the test statistic. State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the...
A sample of 44 observations is selected from one population with a population standard deviation of 3.1. The sample mean is 101.0. A sample of 56 observations is selected from a second population with a population standard deviation of 5.0. The sample mean is 99.5. Conduct the following test of hypothesis using the 0.10 significance level. H0 : μ1 = μ2 H1 : μ1 ≠ μ2 Is this a one-tailed or a two-tailed test? One-tailed test Two-tailed test State the...
Multiple Choice: Question #1 A two tailed hypothesis test is being used to evaluate a treatment effect with ( a = .05). if the sample data produce a Z-score of ( z= -2.24), what is the correct decision? A. Reject the null hypothesis and conclude that the treatment has no effect B. Reject the null hypothesis and conclude that the treatment has an effect C. Fail to reject the null Hypothesis and conclude that the treatment has no effect D....
The one-sample t statistic from a sample of n = 21 observations for the two-sided test of H0: μ = 60, Ha: μ ≠ 60 has the value t = –1.98. Based on this information: we would reject the null hypothesis at α = 0.05. All of the answers are correct. 0.025 < P-value < 0.05. we would reject the null hypothesis at α = 0.10