The monthly incomes for 1212 randomly selected people, each with a bachelor's degree in economics, are shown on the right. Complete parts (a) through (c) below. Assume the population is normally distributed. 4450.644450.64 4596.364596.36 4366.154366.15 4455.354455.35 4151.254151.25 3727.353727.35 4283.284283.28 4527.054527.05 4407.644407.64 3946.923946.92 4023.674023.67 4221.664221.66 (a) Find the sample mean. x overbarxequals=4263.14263.1 (Round to one decimal place as needed.) (b) Find the sample standard deviation. sequals=260.0260.0 (Round to one decimal place as needed.) (c) Construct a 9595% confidence interval for the population mean muμ. A 9595% confidence interval for the population mean is (nothing,nothing). (Round to one decimal place as needed.)
The monthly incomes for 1212 randomly selected people, each with a bachelor's degree in economics, are shown on the right. Complete parts (a) through (c) below. Assume the population is normally distributed. 4450.644450.64 4596.364596.36 4366.154366.15 4455.354455.35 4151.254151.25 3727.353727.35 4283.284283.28 4527.054527.05 4407.644407.64 3946.923946.92 4023.674023.67 4221.664221.66 (a) Find the sample mean. x overbarxequals=4263.14263.1 (Round to one decimal place as needed.) (b) Find the sample standard deviation. sequals=260.0260.0 (Round to one decimal place as needed.) (c) Construct a 9595% confidence interval for the population mean muμ. A 9595% confidence interval for the population mean is (nothing,nothing). (Round to one decimal place as needed.)
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
|
The monthly incomes for
1212
randomly selected people, each with a bachelor's degree in economics, are shown on the right. Complete parts (a) through (c) below.Assume the population is
|
|
(a) Find the sample mean.
x overbarxequals=4263.14263.1
(Round to one decimal place as needed.)(b) Find the sample standard deviation.
sequals=260.0260.0
(Round to one decimal place as needed.)(c) Construct a
9595%
confidence interval for the population mean
muμ.
A
9595%
confidence interval for the population mean is
(nothing,nothing).
(Round to one decimal place as needed.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
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