18. Agriculture: Watermelon What price do farmers get for their watermelon crops? In the third week of July, a random sample of 40 farming regions gave a sample mean of x $6.88 per 100 pounds of watermelon. Assume that o is known to be $1.92 per 100 pounds (Reference: Agricultural Statistics, U.S. Department of Agriculture). (a) Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crop. What is the margin of error? (b) Sample Size Find the sample size necessary for a 90% confidence level with maximal margin of error E 0.3 for the mean price per 100 pounds of watermelon. %3D %3D (c) A farm brings 15 tons of watermelon to market. Find a 90% confidence interval for the population mean cash value of this crop. What is the mar- gin of error? Hint: I ton is 2000 pounds. Ta) Interval: b) n= c) Interval: to Margin of error: to Margin of error:

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
#18 abc
18. Agriculture: Watermelon What price do farmers get for their watermelon
crops? In the third week of July, a random sample of 40 farming regions gave
a sample mean of x $6.88 per 100 pounds of watermelon. Assume that o
is known to be $1.92 per 100 pounds (Reference: Agricultural Statistics, U.S.
Department of Agriculture).
(a) Find a 90% confidence interval for the population mean price (per 100
pounds) that farmers in this region get for their watermelon crop. What is
the margin of error?
(b) Sample Size Find the sample size necessary for a 90% confidence level
with maximal margin of error E 0.3 for the mean price per 100 pounds
of watermelon.
(c) A farm brings 15 tons of watermelon to market. Find a 90% confidence
interval for the population mean cash value of this crop. What is the mar-
gin of error? Hint: I ton is 2000 pounds.
Ta) Interval:
b) n=
c) Interval:
to
Margin of error:
to
Margin of error:
19. FBI Report: Larceny Thirty small communities in Connecticut (population
near 10,000 each) gave an average of x 138.5 reported cases of larceny per
year. Assume that o is known to be 42.6 cases per year (Reference: Crime in
the United States Federal Bureau of Investigation)
e
Transcribed Image Text:18. Agriculture: Watermelon What price do farmers get for their watermelon crops? In the third week of July, a random sample of 40 farming regions gave a sample mean of x $6.88 per 100 pounds of watermelon. Assume that o is known to be $1.92 per 100 pounds (Reference: Agricultural Statistics, U.S. Department of Agriculture). (a) Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crop. What is the margin of error? (b) Sample Size Find the sample size necessary for a 90% confidence level with maximal margin of error E 0.3 for the mean price per 100 pounds of watermelon. (c) A farm brings 15 tons of watermelon to market. Find a 90% confidence interval for the population mean cash value of this crop. What is the mar- gin of error? Hint: I ton is 2000 pounds. Ta) Interval: b) n= c) Interval: to Margin of error: to Margin of error: 19. FBI Report: Larceny Thirty small communities in Connecticut (population near 10,000 each) gave an average of x 138.5 reported cases of larceny per year. Assume that o is known to be 42.6 cases per year (Reference: Crime in the United States Federal Bureau of Investigation) e
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 5 images

Blurred answer
Knowledge Booster
Area
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
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman