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Author Question: A severe drought affected several western states for 3 years. A Christmas tree farmer is worried ... (Read 739 times)

jwb375

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A severe drought affected several western states for 3 years. A Christmas tree farmer is worried about the drought's effect on the size of his trees. To decide whether the growth of the trees has been retarded, the farmer decides to take a sample of the heights of 25 trees. Typically trees of this age have a mean height of 65 inches with a standard deviation of 9 inches.  Assuming the distribution is bell shaped, where do you expect middle 95% of the tree heights to fall?
◦ between 47 and 83 inches tall
◦ between 56 and 74 inches tall
◦ over 56 inches tall
◦ between 38 and 92 inches tall


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Marked as best answer by jwb375 on Jan 16, 2020

micaelaswann

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jwb375

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Reply 2 on: Jan 16, 2020
Wow, this really help


helenmarkerine

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Reply 3 on: Yesterday
Excellent

 

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