t-test data, Calculate the pooled variance for this dataset. Group 1= 9.7, 9.5, 9.2, 8.5, 10.9,...

t-test data,

Calculate the pooled variance for this dataset.

Group 1= 9.7, 9.5, 9.2, 8.5, 10.9, 9.8, 8.7, 9.8, 7.9, 9.0, 10.5, 8.9, 10.0, 8.9, 6.8, 8.2, 9.3, 10.5, 8.5, 9.4

Group 2= 8.1, 7.8, 7.6, 8.1, 9.9, 8.6, 8.8, 9.1, 10.4, 9.1, 6.9, 7.3, 6.7, 5.5, 9.6, 7.8, 8.7, 9.5, 7.8, 8.2

An ANOVA test was conducted in R with the numbers...

monkey group 1= 9.7, 9.2, 9.5, 9.5, 10.9, 9.8, 8.7, 7.9, 9.8, 9, 10.5, 8.9, 10, 8.9, 6.8, 9.3, 8.2, 8.5, 9.4, 10.5

Monkey group 2= 8.1, 7.8, 7.6, 9.9, 8.1, 9.1, 8.8, 10.4, 8.6, 6.9, 9.1, 6.7, 7.3, 7.8, 9.6, 8.7, 5.5, 9.5, 8.2, 7.8

What value in the ANOVA output would be identical to the pooled variance found from the t-test data?

Expert Solution

milcah answered 1 year ago

What exactly does the pooled variance in an independent samples t-test tell us?Why is it necessary...

What exactly does the pooled variance in an independent samples t-test tell us?Why is it necessary to modify this formula for unequal values of n?

1. How is an Analysis of Variance (ANOVA) similar to and different from a t-test for...

1. How is an Analysis of Variance (ANOVA) similar to and different from a t-test for two samples? 2. Why is it impossible to calculate a negative F value when using an Analysis of Variance to test a hypothesis? Please answer both questions

1. Compare and contrast the independent t-test and the analysis of variance. How are they similar...

1. Compare and contrast the independent t-test and the analysis of variance. How are they similar and how are they different. 2. Come up with two hypothetical examples demonstrating this strategy or come up with "real-world" application using your professional life (i.e. how could you apply this in your work).

Problem #2 1) Conduct an independent-measures t-test using the following data set: Group 1: 12 10...

Problem #2 1) Conduct an independent-measures t-test using the following data set: Group 1: 12 10 15 12 4 16 6 10 8 Group 2: 8 5 9 0 6 5 0 1 - 2) Determine the critical values (for an alpha of .05) that you should use to evaluate this t-score. Please be clear with your steps on how you solved. How did you get each number and whether or not the hypothesis is rejected.

1. Calculate the test statistic to compare the variance in poverty rates for rural counties to...

1. Calculate the test statistic to compare the variance in poverty rates for rural counties to that of urban cities in 2016. 2. Calculate the p-value of the test statistic to compare the variance in poverty rates for rural counties to that of urban counties in 2016. These are two questions I have for my homework, I have an excel sheet to work with and I just need to know the operations to derive these calculations. Also, is the F-Statistic...

1. Complete the following table: Nature of Test Purpose Example t-test Analysis of Variance (ANOVA) Correlation...

1. Complete the following table: Nature of Test Purpose Example t-test Analysis of Variance (ANOVA) Correlation Regression 2. Identify the type of test you would conduct to answer the following questions: 1. Are compensation packages at firms different for male and female employees? 2. Is job satisfaction of employees related to organizational commitment? 3. Is rent approximately equal in the seven emirates of the UAE? 4. Does stress lead to weight loss? 5. Does job satisfaction influence organizational commitment? 6....

3. Calculate the p-value (3dp) for a t-test on the chol.csv data with the correct null...

3. Calculate the p-value (3dp) for a t-test on the chol.csv data with the correct null hypothesis from the lab test exercise. 4.Using Fishers F-test determine whether you can accept or reject the null hypothesis that there is no difference between the variances of the day_2 and day_4 samples. chol.csv day_2 day_4 270 218 236 234 210 214 142 116 280 200 272 276 160 146 220 182 226 238 242 288 186 190 266 236 206 244 318 258...

Question 1 The single sample t-test compares the ________ of a single sample (group) to a...

Question 1 The single sample t-test compares the ________ of a single sample (group) to a known population mean. 1) mean 2) standard deviation 3) scores 4) variance Question 2 The distributions from which the scores are taken should be normally distributed. Hint: Refer to your book and look at Assumptions. 1) True 2) False Question 3 To run the single sample t-test in SPSS you need to click on the following: Analyze Compare Means One-Sample t Test 1) True...

How to Run descriptives and a two-tailed, two sample assuming equal variance t-test. Here's your data:...

How to Run descriptives and a two-tailed, two sample assuming equal variance t-test. Here's your data: Weight of Apples in Grams Apple ID Farm A Farm B 1 131 151 2 147 159 3 134 162 4 134 158 5 136 159 6 137 160 7 140 150 8 134 160 9 136 160 10 133 160 11 134 160 12 132 158 13 139 162 14 136 160 15 135 154 16 135 155 17 135 159 18 138...

Chapter 11: Using the attached dataset “Chapter 11 Data Set 1” to test the research hypothesis...

Chapter 11: Using the attached dataset “Chapter 11 Data Set 1” to test the research hypothesis that males raise their hands in class more often than females. (Please note that these data are not exactly the data provided by the author). a. Is this a directional or non-directional hypothesis? b. Should you use a one-tailed or two-tailed test? c. What is the corresponding null hypothesis? d. Conduct the between groups t-test using Excel (either method). Use the .05 confidence level....

Question