Question

TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg) 1079 61.236 1104 79.38 1439 99.792 1029...

TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg)
1079 61.236
1104 79.38
1439 99.792
1029 81.648
1160 72.576
1173 61.236
1067 83.916
1347 97.524
1100 88.452
1204 79.38
1005 57.607
1035 64.184
1281 63.958
1051 133.358
1034 62.143
963 58.968
1027 58.514
1272 61.69
1079 107.503
1070 83.009

Open Brain data. SETUP: It is believed that the heavier the person (i.e. larger weight) the larger the brain volume should be. Given the data your job is to confirm or disprove this assertion.

1. What test/procedure did you perform?

  • a. One-sided t-test
  • b. Two-sided t-test
  • c. Regression
  • d. ​​Confidence interval

2. What is the P-value/margin of error?

  • a. 0.379045702
  • b. 3.44547E-20
  • c. 5.27739E-08
  • d. ​​6.89095E-20
  • e. ​​None of these

3. Statistical interpretation

  • a. Since P-value is very large we cannot confirm that the average of the first sample is larger than the other.
  • b. Since P-value is very small we are very confident that the averages are different.
  • c. Since P-value is very small we are confident that the slope of regression line is not zero.
  • d. ​​None of these.

4. Conclusion

  • a. Yes, I am confident that the above assertion is correct.
  • b. No, we cannot claim that the above assertion is correct.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1) We will perform REGRESSION

OPTION C

2)  the P-value is 0.379045702

OPTION A

3) None of these

4) No, we cannot claim that the above assertion is correct.

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
HC: Head Circumference (cm) TOTVOL: Total Brain Volume (cm3) 57.2 1079 57.2 1104 57.2 1439 57.2...
HC: Head Circumference (cm) TOTVOL: Total Brain Volume (cm3) 57.2 1079 57.2 1104 57.2 1439 57.2 1029 58.5 1160 57.2 1173 57.2 1067 55.8 1347 56.5 1100 59.2 1204 54.7 1005 53 1035 57.8 1281 56.6 1051 53.1 1034 54.2 963 52.9 1027 56.9 1272 55.3 1079 54.8 1070 Open Brain data. SETUP: It is believed that the larger the head circumference the larger the brain volume should be. Given the data your job is to confirm or disprove this...
TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg) 963 58.968 1005 57.607 1027 58.514 1029...
TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg) 963 58.968 1005 57.607 1027 58.514 1029 81.648 1034 62.143 1035 64.184 1051 133.358 1067 83.916 1070 83.009 1079 107.503 1079 61.236 1100 88.452 1104 79.38 1160 72.576 1173 61.236 1204 79.38 1272 61.69 1281 63.958 1347 97.524 1439 99.792 Open Brains data. Test if the weight of people with Brain Volume = 1100 or more and the weight of people with Brain Volume less than 1100 are significantly different on...
TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg) 963 58.968 1005 57.607 1027 58.514 1029...
TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg) 963 58.968 1005 57.607 1027 58.514 1029 81.648 1034 62.143 1035 64.184 1051 133.358 1067 83.916 1070 83.009 1079 107.503 1079 61.236 1100 88.452 1104 79.38 1160 72.576 1173 61.236 1204 79.38 1272 61.69 1281 63.958 1347 97.524 1439 99.792 Open Brains data. Test if the weight of people with Brain Volume = 1100 or more and the weight of people with Brain Volume less than 1100 are significantly different on...
In what follows use any of the following tests: Regression, multiple regression, one-sided t-test, or two-sided...
In what follows use any of the following tests: Regression, multiple regression, one-sided t-test, or two-sided t-test. All conclusions should be based on 5% P-value threshold. Choose the best fitting answer. Open Brains data. SETUP: Since females are on average smaller than males, some people believe that female brains should be smaller as well (smaller volume). Given the data, your job is to perform the appropriate statistical test or procedure and help them decide. 5. What test did you perform?...
In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided...
In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95% confidence interval.Some answers are approximated, choose the most appropriate answer. Open Wages data. SETUP: Is it true that male and female workers have different wages? Given the data your job is to confirm or disprove this assertion. II. Statistical interpretation? (6.66 points) a. Since P-value is small we...
In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test...
In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval Upload CARS data. SETUP: It is believed that Lincolns are heavier than 3500 pounds. Given the data your job is to confirm or disprove this belief. Lincoln Data: 3681 3681 3768 3768 4369 4369 4474 9. What test/procedure did you perform? a. One-sided t-test b. Two-sided t-test c....
In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided...
In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95% confidence interval.Some answers are approximated, choose the most appropriate answer. Open Man_Body data. SETUP: Some people claim that Man chest size is on average larger than the Hip size. Given the data your job is to confirm or disprove this claim. I. What test/procedure did you perform? (6.66...
In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test...
In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Upload the data HeartRate_Exercise. These data are based on 45 randomly chosen high school students. SETUP: Is it reasonable to claim that students who exercise more have lower heart beat rate at rest. Given the data your job is to confirm or disprove this claim. 5. What test/procedure...
In what follows use any of the following tests: Regression, multiple regression, one-sided t-test, or two-sided...
In what follows use any of the following tests: Regression, multiple regression, one-sided t-test, or two-sided t-test. All conclusions should be based on 5% P-value threshold. Choose the best fitting answer. Open Brains data. SETUP: You are asked to check if there is difference in the averages of Head Circumference and Weight. Given the data, your job is to perform the appropriate statistical test or procedure. 9. What test did you perform? a. Regression b. Multiple regression c. One-sided t-test...
Total blood volume (in ml) per body weight (in kg) is important in medical research. For...
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 26 40 33 32 39 29 The sample mean is x ≈ 33.1 ml/kg. Let x...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT