Perform a Fmax test on the following 2 samples, and then choose the correct statement Sample...
For the following experiment/question, pick the most appropriate statistical test. You have the following statistical tests as choices: some may be used more than once, others not at all. Assume homogeneity of variance (where applicable) and the validity of parametric tests (where applicable), unless something is directly stated (e.g., “the data are not at all normal”) or otherwise indicated (viz., by the inspection of the data) which would indicate a strong and obvious violation of an assumption. This means you must...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question 24) Find the critical value. 24) Source DF SS MS F P treatments 3 13.500 4.500 5.17 0.011 16 13.925 0.870 19 27.425 Total C) 3.06 A) 8.70 B) 3.24 D) 5.42 25) What can you conclude about the equality of the population means? Use level of significance of 25) 0.05 SourceDF SS MS F treatments 3 13.500 4.500 5.17 0011 16 13.925 0.870 Total...
The following information was obtained from independent random samples. Assume normally populations with equal Sample 1 Sample 2 12 Sample Size 10 Sample Mean 52 Sample Variance 85 We are interested in testing Hai sample 1 -Hsample 2 0 Step 2 of 3: Determine the p-value for the test. TablesKeypad Answer 1 Point Next Prev O p-value c 0.025 0.025< p-value <0.05 Op-value <0.1 。p-value > 0.2 None of the above o 2019 8 3 of 3 The following information...
6. A researcher wishes to test the effect of early discharge of cardiac patients on their ability to cope at home. The researcher administers the coping scale to 10 cardiac patients who were discharged early and 10 patients who stayed in the hospital for a longer period of time. Higher scores indicate better coping. Based on the data given in the table below, can you conclude that early discharge has an effect on cardiac patients’ on ability to cope at...
A random sample of n - 16 scores is selecdted from a normal population with a mean of p - 50. After atreatment is administered to the individuals in the sample, the sample mean is found to be M -54 If the population standard deviation is σ-8, is the sample mean sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with α-.05. (Hint: Recall that the critical value for a two-tailed test with α-.05 is...
Let's say you measure the rate of CO2 production during respi- ration in a sample of ten Drosophila flies with a mutation in the Dg gene and ten wildtype Drosophila flies and want to test if the mutation has an effect on respiration. (a) What test would you perform? (b) What is the value of the parameter that determines the shape of the sampling distribution for the test? (c) Let's say your samples appear strongly right-skewed. What assumption for the...
When should I use the One-sample t-test? Remember that some tests, such as chi squared, can be used under various circumstances. The goal of the test changes based on the situation. Pay attention to the specific conditions noted in parenthesis to ensure you are picking the correct goal. A. Test the fit of the normal distribution to the data set. B. Compare two treatment groups consisting of independent samples with a normal distribution AND unequal variance. C. Test to see...
Q2) Independent-Samples t-Test (15 points total) Help with H, I, J, K, L please! In a research project, researchers collected demographic and health data from a sample of elderly residents in the community. To examine any possible gender differences in their sample, they want to see if the females and the males differ significantly on the education level (number of years of formal schooling). The researchers are not predicting any direction in the possible gender differences so the hypotheses should...
QUESTION 2 When shouldI use the Welch's t-test? Remember that some tests, such as chi squared, can be used under various circumstances. The goal of the test changes based on the situation. Pay attention to the specific conditions noted in parenthesis to ensure you are picking the correct goal Compare categorical frequency data with an expected population proportion. No difference between observed and expected proportions is used as the null hypothesis B. More than two treatment groups where a normal...
For the following questions , identify the type of test that should be used. Simply use the corresponding letter: A) One-sample z test (for a mean); B) One-sample t-test; C) One-sample z-test for a proportion (or a chi-squared goodness-of-fit); D) Chi-square goodness of fit (and a z-test is not appropriate); E) Two-sample z-test for a difference between proportions (or a chi-squared test for independence); F) Chi-square test for independence (and a z-test is not appropriate); G) Simple regression; H) Multiple...