According to a report, the mean of monthly cell phone bills was $49.55 three years ago. A researcher suspects that the mean of monthly cell phone bills is less today. (a) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. (c) Explain what it would mean to make a Type Il error. (a) State the hypotheses. Ho: H1: (Type integers or decimals. Do not round.) (b) Explain what it would mean to make a Type I error. Choose the correct answer below. O A. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is $49.55. O B. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55. O C. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is different from $49.5 O D. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is $49.55. (c) Explain what it would mean to make a Type Il error. Choose the correct answer below. O A. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is $49.55. O B. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55. O c. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is different from $49.5 O D. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55.

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
Topic Video
Question
According to a report, the mean of monthly cell phone bills was $49.55 three years ago. A researcher suspects that the mean of monthly cell phone bills is less today.
(a) Determine the null and alternative hypotheses.
(b) Explain what it would mean to make a Type I error.
(c) Explain what it would mean to make a Type Il error.
(a) State the hypotheses.
Họ:
H;:
(Type integers or decimals. Do not round.)
(b) Explain what it would mean to make a Type I error. Choose the correct answer below.
O A. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is $49.55.
O B. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55.
O C. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is different from $49.55.
O D. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is $49.55.
(c) Explain what it would mean to make a Type Il error. Choose the correct answer below.
O A. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is $49.55.
O B. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55.
OC. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is different from $49.55.
O D. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55.
Transcribed Image Text:According to a report, the mean of monthly cell phone bills was $49.55 three years ago. A researcher suspects that the mean of monthly cell phone bills is less today. (a) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. (c) Explain what it would mean to make a Type Il error. (a) State the hypotheses. Họ: H;: (Type integers or decimals. Do not round.) (b) Explain what it would mean to make a Type I error. Choose the correct answer below. O A. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is $49.55. O B. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55. O C. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is different from $49.55. O D. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is $49.55. (c) Explain what it would mean to make a Type Il error. Choose the correct answer below. O A. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is $49.55. O B. The sample evidence led the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55. OC. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is different from $49.55, when in fact the mean of the bill is different from $49.55. O D. The sample evidence did not lead the researcher to believe the mean of the monthly cell phone bill is less than $49.55, when in fact the mean of the bill is less than $49.55.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
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.
Similar questions
  • SEE MORE QUESTIONS
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