0.0274 QUESTION 7 We take a random sample of 27 trees in a large forest and measure their heights. The sample mean is calculated to be 28.4 feet and the sample standard deviation is calculated to be...


0.0274<br>QUESTION 7<br>We take a random sample of 27 trees in a large forest and measure their heights. The sample mean is calculated to be 28.4<br>feet and the sample standard deviation is calculated to be 5.3 feet. Heights of trees in the forest are known to follow a<br>normal distribution.<br>A 98% confidence interval for the true mean height of all trees in the forest is<br>A.<br>(26.73, 32.93)<br>B. (25.12, 30.71)<br>O C.(24.87, 29.93)<br>D. (25.87, 30.93)<br>E.<br>None of the above.<br>QUESTION 8<br>

Extracted text: 0.0274 QUESTION 7 We take a random sample of 27 trees in a large forest and measure their heights. The sample mean is calculated to be 28.4 feet and the sample standard deviation is calculated to be 5.3 feet. Heights of trees in the forest are known to follow a normal distribution. A 98% confidence interval for the true mean height of all trees in the forest is A. (26.73, 32.93) B. (25.12, 30.71) O C.(24.87, 29.93) D. (25.87, 30.93) E. None of the above. QUESTION 8

Jun 10, 2022
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