The world’s Largest Sharp Brain Virtual Experts Marketplace Just a click Away
Levels Tought:
University
| Teaching Since: | Apr 2017 |
| Last Sign in: | 439 Weeks Ago, 1 Day Ago |
| Questions Answered: | 9562 |
| Tutorials Posted: | 9559 |
bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
Currently, 20% of potential customers buy soap of brand A. To increase sales, the company will conduct an extensive advertising campaign. At the end of the campaign, a sample of 400 potential customers will be interviewed to determine whether the campaign was successful.
a State H0 and Ha in terms of p, the probability that a customer prefers soap brand A.
b The company decides to conclude that the advertising campaign was a success if at least 92 of the 400 customers interviewed prefer brand A. Find α. (Use the normal approximation to the binomial distribution to evaluate the desired probability.)
Â
Â
-----------