The average daily volume of a computer stock in 2011 was u = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 30 trading days in 2014, he finds the sample mean to be 31.2 million shares, with a standard deviation of s = 14.2 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. (a) State the hypotheses for the test. 35.1 million shares 35.1 million shares Ho: (b) Construct a 95% confidence interval about the sample mean of stocks traded in 2014. The lower bound is million shares. The upper bound is O million shares. (Round to three decimal places as needed.) (c) Will the researcher reject the null hypothesis? O A. Reject the null hypothesis because u = 35.1 million shares falls in the confidence interval. O B. Do not reject the null hypothesis because u = 35.1 million shares falls in the confidence interval. OC. Do not reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval. O D. Reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval.

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
The average daily volume of a computer stock in 2011 was u= 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in
2014 is different from the 2011 level. Based on a random sample of 30 trading days in 2014, he finds the sample mean to be 31.2 million shares, with a standard
deviation of s = 14.2 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below.
(a) State the hypotheses for the test.
Họ:
35.1 million shares
H,:
V 35.1 million shares
(b) Construct a 95% confidence interval about the sample mean of stocks traded in 2014.
The lower bound is million shares.
The upper bound is
million shares.
(Round to three decimal places as needed.)
(c) Will the researcher reject the null hypothesis?
O A. Reject the null hypothesis because u = 35.1 million shares falls in the confidence interval.
O B. Do not reject the null hypothesis because p = 35.1 million shares falls in the confidence interval.
OC. Do not reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval.
O D. Reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval.
Transcribed Image Text:The average daily volume of a computer stock in 2011 was u= 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 30 trading days in 2014, he finds the sample mean to be 31.2 million shares, with a standard deviation of s = 14.2 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. (a) State the hypotheses for the test. Họ: 35.1 million shares H,: V 35.1 million shares (b) Construct a 95% confidence interval about the sample mean of stocks traded in 2014. The lower bound is million shares. The upper bound is million shares. (Round to three decimal places as needed.) (c) Will the researcher reject the null hypothesis? O A. Reject the null hypothesis because u = 35.1 million shares falls in the confidence interval. O B. Do not reject the null hypothesis because p = 35.1 million shares falls in the confidence interval. OC. Do not reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval. O D. Reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
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
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