es A sample of 12 fossil skeletons of an extinct species of bird has been collected. The mean length of the skulls in this sample is 5.29 cm and the standard deviation of the sample is 0.21 cm. Assuming that such measurements are normally distributed, find a 90% confidence interval for the population mean length of the skulls of this species of bird. You may want to use one of these: qt (p-0.10, df-11, lower. tail-FALSE)=1.36343 qt(p-0.05, df-11, lower.tail-FALSE) =1.795885 qnorm(0.10, mean-0, sd-1, lower.tail-FALSE)=1.281552 qnorm(0.05, mean-0, sd-1, lower.tail=FALSE)=1.644854 O (4.945, 5.635) O (4.913, 5.667) O (5.021, 5.559) O (5.181, 5.399)
es A sample of 12 fossil skeletons of an extinct species of bird has been collected. The mean length of the skulls in this sample is 5.29 cm and the standard deviation of the sample is 0.21 cm. Assuming that such measurements are normally distributed, find a 90% confidence interval for the population mean length of the skulls of this species of bird. You may want to use one of these: qt (p-0.10, df-11, lower. tail-FALSE)=1.36343 qt(p-0.05, df-11, lower.tail-FALSE) =1.795885 qnorm(0.10, mean-0, sd-1, lower.tail-FALSE)=1.281552 qnorm(0.05, mean-0, sd-1, lower.tail=FALSE)=1.644854 O (4.945, 5.635) O (4.913, 5.667) O (5.021, 5.559) O (5.181, 5.399)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
Question
100%
![es
A sample of 12 fossil skeletons of an extinct species of bird has been collected. The mean
length of the skulls in this sample is 5.29 cm and the standard deviation of the sample is
0.21 cm. Assuming that such measurements are normally distributed, find a 90% confidence
interval for the population mean length of the skulls of this species of bird.
You may want to use one of these:
qt (p-0.10, df-11, lower. tail-FALSE)=1.36343
qt(p-0.05, df-11, lower.tail-FALSE) =1.795885
qnorm(0.10, mean-0, sd-1, lower.tail-FALSE)=1.281552
qnorm(0.05, mean-0, sd-1, lower.tail=FALSE)=1.644854
O (4.945, 5.635)
O (4.913, 5.667)
O (5.021, 5.559)
O (5.181, 5.399)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe99fe633-2e82-4dde-a878-82e2251a369a%2Fd7e99322-77fc-4d18-aca1-82a817eb8b1e%2Fjvp3gwg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:es
A sample of 12 fossil skeletons of an extinct species of bird has been collected. The mean
length of the skulls in this sample is 5.29 cm and the standard deviation of the sample is
0.21 cm. Assuming that such measurements are normally distributed, find a 90% confidence
interval for the population mean length of the skulls of this species of bird.
You may want to use one of these:
qt (p-0.10, df-11, lower. tail-FALSE)=1.36343
qt(p-0.05, df-11, lower.tail-FALSE) =1.795885
qnorm(0.10, mean-0, sd-1, lower.tail-FALSE)=1.281552
qnorm(0.05, mean-0, sd-1, lower.tail=FALSE)=1.644854
O (4.945, 5.635)
O (4.913, 5.667)
O (5.021, 5.559)
O (5.181, 5.399)
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