A Forester measured 27 of the trees in a large woods that is up for sale....
A Forester measured 27 of the trees in a large woods that is up for sale. He found a mean diameter of 10.4 inches and a standard deviation of 4.7 inches. Suppose that these trees provide an accurate description of the whole forest and that a Normal model applies. (a) about what percent of the trees should be between 6.2 and 12 inches in diameter? (b) What z-score corresponds to the upper 8% of trees.
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A Forester measured 27 of the trees in a large woods that is up
for sale....
A forester measured 27 of the trees in a large woods that is up for sale....
A forester measured 27 of the trees in a large woods that is up for sale. He found a mean diameter of 10.4 inches and a standard deviation of 4.7 inches. Suppose that these trees provide an accurate description of the whole forest and that a Normal model applies. For each problem, show the shaded region. For each problem show your work. If you used your diagram (show it by the shaded region) or the calculator. State the keystrokes if...
1. (16 Marks 4 points each) A forester measured 20 of the trees in a large...
1. (16 Marks 4 points each) A forester measured 20 of the trees in a large woods that is up for sale. He found that their mean diameter was 191 inches and their standard deviation 22.4 inches. Suppose that these trees provide an accurate description of the whole forest and that the diameter of the tree follows a normal distribution. Find the following: a) What percentage of trees would be above 191 inches in diameter? b) What percentage of trees...
This Test: 276 pts poss 46 of 50 (17 complete) his Question: 20 pts A forester...
This Test: 276 pts poss 46 of 50 (17 complete) his Question: 20 pts A forester measured 22 of the trees in a large woods that is up for sale. He found a mean dameter of 10.7 inches and a standard deviation of 44 inches Suppose that hese trees provide an aocurate description of the whole forest and that Noremal model applies a) Choose the correct Normal model for tree 6ameters De not round. Type intngers or decimalt) e) About...
ter shows the accompanying histogram of tree diameters he used in analyzing 27 trees in a...
ter shows the accompanying histogram of tree diameters he used in analyzing 27 trees in a large woods that was for sale Was he justified in using a Normal model to analyze the woods? Explain, dliting some speofic concems click the icon to view the histogram of tree diameters Choose the correct answer below O A. Yes, because the histogram is unimodal and symmetric. O B. No, because the histogram is not unimodal or symmetric O c. No, because while...
9. At a large university, students have an average credit card debt of $2200 with a...
9. At a large university, students have an average credit card debt of $2200 with a standard deviation of $600. 99.7% of all credit card debts are between what two numbers? Use the Empirical Rule, A) 1000, 3400 B) 1600, 2800 C) 31.6,58.3 D) 400, 4000 E) None of the Above 10. Find the percent of the Standard Normal model found in the given region: 1.9<z<2.11 B) 0.0065 A) 0.1618 C) 0.1667 D) 0.0113 E) None of the Above 11....
Page 2 > of 8 8. A group of volunteers for a clinical trial consists of...
Page 2 > of 8 8. A group of volunteers for a clinical trial consists of 81 women and 98 men. 31 of the women and 27 of the men have high blood pressure. If one of the volunteers is selected at random, find the probability that the person has high blood pressure given the person is a man. A) 27/98 B) 31/81 C) 31/58 D) 27/98 E) None of the Above 9. At a large university, students have an...
#1: Food scientists and nutritionists at the Sale Mart Supermarket chain want to estimate the true...
#1: Food scientists and nutritionists at the Sale Mart Supermarket chain want to estimate the true mean cholesterol content in their house brand blocks of Colby Jack cheese. Industry standards indicate that the population standard deviation is 2.5 mg. Determine the minimum sample size necessary to estimate to within 0.5 mg of the true population mean and with 95% confidence. (a) 95 (b) 96 (c) 97 (d) 98 (e) None of these answers #2: Food scientists and nutritionists at...
Please m asking for assistance on statistics Q10. A population consists of the following N-5 scores:...
Please m asking for assistance on statistics
Q10. A population consists of the following N-5 scores: 0, 6, 4, 3, and 12 a. Compute u ando for the population b. Find the 2-score for each score in the population c. Transform the original population into a new population of N = 5 scores with a mean of u = 100 and a standard deviation of a = 20 Q11. For a sample with a mean of M = 51, a...
1. (16 Marks 4 points each) A forester measured 20 of the trees in a large woods that is up for sale. He found that their mean diameter was 191 inches and their standard deviation 22.4 inches. Suppose that these trees provide an accurate description of the whole forest and that the diameter of the tree follows a normal distribution. Find the following: a) What percentage of trees would be above 191 inches in diameter? b) What percentage of trees...
This Test: 276 pts poss 46 of 50 (17 complete) his Question: 20 pts A forester measured 22 of the trees in a large woods that is up for sale. He found a mean dameter of 10.7 inches and a standard deviation of 44 inches Suppose that hese trees provide an aocurate description of the whole forest and that Noremal model applies a) Choose the correct Normal model for tree 6ameters De not round. Type intngers or decimalt) e) About...
ter shows the accompanying histogram of tree diameters he used in analyzing 27 trees in a large woods that was for sale Was he justified in using a Normal model to analyze the woods? Explain, dliting some speofic concems click the icon to view the histogram of tree diameters Choose the correct answer below O A. Yes, because the histogram is unimodal and symmetric. O B. No, because the histogram is not unimodal or symmetric O c. No, because while...
9. At a large university, students have an average credit card debt of $2200 with a standard deviation of $600. 99.7% of all credit card debts are between what two numbers? Use the Empirical Rule, A) 1000, 3400 B) 1600, 2800 C) 31.6,58.3 D) 400, 4000 E) None of the Above 10. Find the percent of the Standard Normal model found in the given region: 1.9<z<2.11 B) 0.0065 A) 0.1618 C) 0.1667 D) 0.0113 E) None of the Above 11....
Page 2 > of 8 8. A group of volunteers for a clinical trial consists of 81 women and 98 men. 31 of the women and 27 of the men have high blood pressure. If one of the volunteers is selected at random, find the probability that the person has high blood pressure given the person is a man. A) 27/98 B) 31/81 C) 31/58 D) 27/98 E) None of the Above 9. At a large university, students have an...
Please m asking for assistance on statistics
Q10. A population consists of the following N-5 scores: 0, 6, 4, 3, and 12 a. Compute u ando for the population b. Find the 2-score for each score in the population c. Transform the original population into a new population of N = 5 scores with a mean of u = 100 and a standard deviation of a = 20 Q11. For a sample with a mean of M = 51, a...
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