The 95% confidence interval for uz000 - P2001 is (-1,0, 1.7). (Round to one decimal place as needed.) Does one of the years look better than the other? O A. Yes, 2000 looks better because the confidence interval is greater than 0. B. Yos, 2000 looks better because the confidence interval contains 0. OC. Yes, 2001 looks better because the confidence interval is less than 0. OD. No, because the confidence interval contains 0.
The 95% confidence interval for uz000 - P2001 is (-1,0, 1.7). (Round to one decimal place as needed.) Does one of the years look better than the other? O A. Yes, 2000 looks better because the confidence interval is greater than 0. B. Yos, 2000 looks better because the confidence interval contains 0. OC. Yes, 2001 looks better because the confidence interval is less than 0. OD. No, because the confidence interval contains 0.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.5: Descriptive Modeling And Accuracy
Problem 11PPS
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Transcribed Image Text:The recommendations of respected wine critics have a substantial effect on the price of wine. Vintages that earn higher ratings command higher prices and spark
surges in demand. These data are a random sample of ratings of wines selected from an online Web site from the 2000 and 2001 vintages. Complete parts (a) through
(d).
Click the icon to view the table of wine rating, price, and vintage.
Yes, all the conditions are satisfied.
B. No, the 2000 data contains outliers.
No, the 2001 data is too skewed.
D. No, the sampling procedure was not identified and it cannot be condluded that this is a simple random survey.
No, the variances are drastically different.
(b) Find the 95% confidence interval for the difference in average ratings in these two vintages. Does one of the years look better than the other?
The 95% confidence interval for P2000 - P2001 is ( – 1.0. 1.7).
(Round to one decimal place as needed.)
Does one of the years look better than the other?
O A. Yes, 2000 looks better because the confidence interval is greater than 0.
B. Yes, 2000 looks better because the confidence interval contains 0.
OC. Yes, 2001 looks better because the confidence interval is less than 0.
D. No, because the confidence interval contains 0.
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