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In: Statistics and Probability

Caution: One sided t-test begins with the investigation of Averages. Only if the Averages are in...

Caution: One sided t-test begins with the investigation of Averages. Only if the Averages are in agreement with the assertion do we use Excel to compute p-value. If Averages are not in agreement, the test is automatically deemed inconsistent and no p-value is computed.

It is commonly believed that men older than 40 are heavier than 170 pounds. Use ManBody ( https://www.limes.one/Content/DataFiles/ManBody.xlsx ) Data and your statistical expertise to answer the questions: Is this a reasonable belief?

1. What test/procedure did you perform?

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

2. Statistical Interpretation

  • a. Since P-value is small we are confident that the slope is not zero.
  • b. Since P-value is small we are confident that the averages are different.
  • c. Since P-value is too large the test is inconclusive.
  • d. ​​None of these.

3. Conclusion

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

Solutions

Expert Solution

1. ans-> a. One-sided t-test

2. ans-> d. ​​None of these.

3. ans-> a. Yes, I am confident that the above belief is reasonable.

orchestra answered 2 years ago
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