Question

Chapter 8, Section 2, Exercise 042 Consider the data with analysis shown in the following computer...

Chapter 8, Section 2, Exercise 042

Consider the data with analysis shown in the following computer output:

Level N Mean StDev
A 4 10.300 3.231
B 5 16.800 2.168
C 6 10.800 2.387
Source DF SS MS F P
Groups 2 128.75 64.38 9.83 0.003
Error 12 78.61 6.55
Total 14 207.36

What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means?

Round your answer for the pooled standard deviation to two decimal places.

The pooled standard deviation is =

degrees of freedom=

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider the following computer output for an experiment. The factor was tested over four levels. Answer...
Consider the following computer output for an experiment. The factor was tested over four levels. Answer the following questions: Source SS df MS F P-value Factor 330.47 3.01 Error Total 35 (a) How many replicates did the experimenter use? (b) Fill in the missing information in the ANOVA table. (c) Calculate P-value bounds using tables and the exact value using EXCEL. (d)What conclusions can you draw about differences in the factor-level means?
Consider the partial ANOVA table shown below. Let a = .01 Source of Variation DF SS...
Consider the partial ANOVA table shown below. Let a = .01 Source of Variation DF SS MS F Between Treatments 3 180 Within Treatments (Error) Total 19 380 If all the samples have five observations each: there are 10 possible pairs of sample means. the only appropriate comparison test is the Tukey-Kramer. all of the absolute differences will likely exceed their corresponding critical values. there is no need for a comparison test – the null hypothesis is not rejected. 2...
A study of the effect of television commercials on 12-year-old children measured their attention span, in...
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 34 38 64 30 34 50 44 51 39 35 42 48 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 44 51 54   Click here for the Excel Data File Complete the ANOVA table. Use 0.05 significance level. (Round the SS and MS...
A study of the effect of television commercials on 12-year-old children measured their attention span, in...
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 28 38 53 16 41 44 51 42 48 35 52 56 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 44 51 54 1-) Complete the ANOVA table. Use 0.05 significance level. (Round the SS and MS values to 1 decimal place and...
11. (1 pt).Consider the following data from two independent groups: Liberals: 2, 1, 3, 2 Conservatives:...
11. (1 pt).Consider the following data from two independent groups: Liberals: 2, 1, 3, 2 Conservatives: 4, 3, 3, 5, 2, 4 Calculate s^2 for each group. 12. (1 pt). For the data in Problem 11, calculate dfX, dfY, and dftotal. 13. (1 pt). For the data in Problem 11, determine the critical values for t, assuming a two-tailed test with an alpha of 0.05 14. (1 pt). For the data in Problem 11, calculate the pooled variance, spooled2. 15....
Data For Tasks 1-8, consider the following data: 7.2, 1.2, 1.8, 2.8, 18, -1.9, -0.1, -1.5,...
Data For Tasks 1-8, consider the following data: 7.2, 1.2, 1.8, 2.8, 18, -1.9, -0.1, -1.5, 13.0, 3.2, -1.1, 7.0, 0.5, 3.9, 2.1, 4.1, 6.5 In Tasks 1-8 you are asked to conduct some computations regarding this data. The computation should be carried out manually. All the steps that go into the computation should be presented and explained. (You may use R in order to verify your computation, but not as a substitute for conducting the manual computations.) A Random...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT