A study of 40 English composition professors showed that they spent, on average, 12.6 minutes correcting a student's term paper with a standard deviation of 2.5 minutes. Compute a 90% confidence interval for the mean time spent by a professor grading a composition paper. O A. 12.0 < µ < 13.2 O B. 11.7 < u < 13.5 OC. 11.8 < u < 13.4 O D. 11.9 < H < 13.3 QUESTION 5 8 poi A statistics student randomły selected 45 packets of sugar and weighed the contents of each packet, getting a mean of 3.586 grams and a standard deviation of 0.194 grams, Test the claim that the weights of the sugar packets have a mean no longer equal to 3.5 grams, as indicated on the label. Let "alpha" be 0.10 to test this claim. What are the hypotheses to be tested? OA Họ: H s 3.5 Click Save and Submit to save and submnit. Click Save AlL Answers to saue all anneers Sve AAnver Sve an 44°F A O O Type here to search 6+ Insert Deen C. F6 F7 F9 F10 Fi Eac 23 %23 24 Backspace 3 41 7 8. T Y U
A study of 40 English composition professors showed that they spent, on average, 12.6 minutes correcting a student's term paper with a standard deviation of 2.5 minutes. Compute a 90% confidence interval for the mean time spent by a professor grading a composition paper. O A. 12.0 < µ < 13.2 O B. 11.7 < u < 13.5 OC. 11.8 < u < 13.4 O D. 11.9 < H < 13.3 QUESTION 5 8 poi A statistics student randomły selected 45 packets of sugar and weighed the contents of each packet, getting a mean of 3.586 grams and a standard deviation of 0.194 grams, Test the claim that the weights of the sugar packets have a mean no longer equal to 3.5 grams, as indicated on the label. Let "alpha" be 0.10 to test this claim. What are the hypotheses to be tested? OA Họ: H s 3.5 Click Save and Submit to save and submnit. Click Save AlL Answers to saue all anneers Sve AAnver Sve an 44°F A O O Type here to search 6+ Insert Deen C. F6 F7 F9 F10 Fi Eac 23 %23 24 Backspace 3 41 7 8. T Y U
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:A study of 40 English composition professors showed that they spent, on average, 12.6 minutes correcting a student's
term paper with a standard deviation of 2.5 minutes.
Compute a 90% confidence interval for the mean time spent by a professor grading a composition paper.
OA 12.0 < u < 13.2
O B. 11.7 < u < 13.5
Oc11.8 < u < 13.4
OD.11.9 < µ< 13.3
8 poin
QUESTION 5
A statistics student randomly selected 45 packets of sugar and weighed the contents of each packet, getting a mean of
3.586 grams and a standard deviation of 0.194 grams. Test the claim that the weights of the sugar packets have a mean
no longer equal to 3.5 grams, as indicated on the label. Let "alpha" be 0.10 to test this claim.
What are the hypotheses to be tested?
DA.Ho: H <3.5
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