Claim that the average brain volume is less than 1100

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Reference no: EM132483927

In what follows use any of the following tests/procedures: 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.

Use the Brains data. SETUP: Is it reasonable to claim that the average brain Volume is less than 1100?

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. 2.30791
  • b. 0.00166
  • c. 4.72877
  • d. ??5.21228
  • e. ??None of these

3. Statistical interpretation

  • a. Since P-value is too large the above claim is not reasonable.
  • b. Since P-value is small enough the above claim is reasonable.
  • c. We are 95% certain that the 1100 is not within the confidence interval.
  • d. ??None of these.

4. Conclusion

  • a. Yes, I am confident that the above claim is correct.
  • b. No, we cannot claim that the above claim is correct.

Reference no: EM132483927

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