A random sample of 10 parking meters (out of 150 parking meters total) in a beach community showed the following incomes for a day. Assume the incomes are normally distributed. $3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25 $8.00 $3.00 a) Find a 90% confidence interval for the MEAN income of all parking meters in the beach community. b) Notice that most of the incomes above are NOT in the confidence interval. Explain why we don’t expect them to be in the interval by explaining what the confidence interval is estimating.
A random sample of 10 parking meters (out of 150 parking meters total) in a beach community showed the following incomes for a day. Assume the incomes are normally distributed. $3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25 $8.00 $3.00 a) Find a 90% confidence interval for the MEAN income of all parking meters in the beach community. b) Notice that most of the incomes above are NOT in the confidence interval. Explain why we don’t expect them to be in the interval by explaining what the confidence interval is estimating.
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
Related questions
Topic Video
Question
A random sample of 10 parking meters (out of 150 parking meters total) in a beach community showed the following incomes for a day. Assume the incomes are normally distributed.
$3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25 $8.00 $3.00
a) Find a 90% confidence interval for the
b) Notice that most of the incomes above are NOT in the confidence interval. Explain why we don’t expect them to be in the interval by explaining what the confidence
Expert Solution
Step 1
| 3.6 | |
| 4.5 | |
| 2.8 | |
| 6.3 | |
| 2.6 | |
| 5.2 | |
| 6.75 | |
| 4.25 | |
| 8 | |
| 3 | |
| 4.7 | Mean |
| 1.834 | Stdev |
n = 10
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
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…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill