The claim is a mean is 226 and you want to prove it is less. Test the
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The claim is a mean is 226 and you want to prove it is less. Test the hypothesis within a 1% level of significance. Your sample of 65 had a mean of 216.96 and standard deviation of 18.08. Level of difficulty = 1 of 3 Please format to 2 decimal places.
| Number of Tails: | One-tail Two-tail |
| Test Statistic: | |
| Critical z in the Decision Rule: | Both + and |
| Reject or Not: | Reject null hypothesis Do not reject null hypothesis |
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