Security experts are raising concerns about hackers targeting smartphones, as owners store more personal and financial information

Question:

Security experts are raising concerns about hackers targeting smartphones, as owners store more personal and financial information on the devices. In 2012, it was estimated that 7% of smartphone users were victims of malicious attacks on their mobile devices. A random sample of 190 smartphone owners was recently selected, and it was found that 17 had experienced attacks on their devices. Using a = 0.05, answer the following:

a. Based on this sample, can we conclude that the percentage of smartphone owners who have had their devices hacked has changed since 2012?

b. Determine the p-value for this test and interpret its meaning.

c. Verify your results using PHStat.

AppendixLO1

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Business Statistics

ISBN: 9780133852288

2nd Edition

Authors: Robert A Donnelly, Robert Donnelly Jr

Question Posted: