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In: Statistics and Probability

QUESTION: Last week I gave a statistic from Wikipedia which listed the average weight of a...

QUESTION: Last week I gave a statistic from Wikipedia which listed the average weight of a person in North America was 177.9. I don’t think this value is correct. Use our class data to test my claim. Use α=.05.

CLASS DATA:

the average weight of a person is 165.1

the standard deviation is 36.3

sample size is 261

Solutions

Expert Solution

The test statistic is calculated using the formula mentioned. The critical value is obtained from STATKEY (image attached for reference). We compare the test statistic with the critical value and make the required conclusion.

orchestra answered 2 years ago
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