Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) x= 17.598 Sx = 16.01712719 n= 50

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 7PT
icon
Related questions
icon
Concept explainers
Topic Video
Question
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c)
below.
TInterval
(13.046,22.15)
x= 17.598
Sx = 16.01712719
n= 50
Transcribed Image Text:Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) x= 17.598 Sx = 16.01712719 n= 50
a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval
limits accordingly.
13.05 Mbps < < 22.15 Mbps
(Round to two decimal places as needed.)
b. Identify the best point estimate of u and the margin of error.
The point estimate of u is 17.60 Mbps.
(Round to two decimal places as needed.)
The margin of error is E = 4.55 Mbps.
(Round to two decimal places as needed.)
c. In constructing the confidence interval estimate of u, why is it not necessary to confirm that the sample data appear to be from a population with a normal
distribution?
Transcribed Image Text:a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly. 13.05 Mbps < < 22.15 Mbps (Round to two decimal places as needed.) b. Identify the best point estimate of u and the margin of error. The point estimate of u is 17.60 Mbps. (Round to two decimal places as needed.) The margin of error is E = 4.55 Mbps. (Round to two decimal places as needed.) c. In constructing the confidence interval estimate of u, why is it not necessary to confirm that the sample data appear to be from a population with a normal distribution?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps

Blurred answer
Knowledge Booster
Centre, Spread, and Shape of a Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL