Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

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

image text in transcribed
image text in transcribed
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 30.8 million shares, with a standard deviation of s = 15.3 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. (a) State the hypotheses for the test. V 35.1 million shares 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. Do not reject the null hypothesis because u = 35.1 million shares falls in the confidence interval. O B. Reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval. O C. 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 falls in the confidence interval

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Calculus Early Transcendentals

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

4th Edition

1319055907, 9781319055905

More Books

Students also viewed these Mathematics questions

Question

Go, do not wait until I come

Answered: 1 week ago