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  • 5 years ago

A random sample of 100 pumpkins is obtained and the mean circumference is found to be 40.5 cm. Assuming that the population standard deviation is known to be 1.6 cm, use a 0.05 significance level to test the claim that the mean circumference of all pumpkins is less than 39.9 cm. Which is the appropriate test for this data? A. two-tailed t test B. one-tailed t test C. two-tailed z test D. one-tailed z test

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  1. anonymous
    • 5 years ago
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    Answer is B

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