Answered: ccording to a recent census, 15% of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

According to a recent census, 15% of the people in the United States are of Hispanic origin. One county supervisor believes her county has a different proportion of Hispanic people than the nation as a whole. She looks at their most recent survey data, which was a random sample of 435 county residents, and found that 40 of those surveyed are of Hispanic origin. This is a one-proportion z test. Answer the following:

A. ) The 435 residents were a random sample from the county of interest. The sample size is more than 100. One expects np0=(?) successes and nq0=(?) failures, which are both more than 10.

B.) The 435 residents were a random sample from the county of interest.

435 is likely less than 10% of the population of a county. One expects

np0=(?) successes and nq0=(?) failures, which are both more than 10.

C.) The 435 residents were a random sample from the county of interest. The standard deviation of p is less than 0.5. One expects np0=(?)

successes and nq0=(?) failures, which are both more than 20.

Expert Solution