Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A decade-old study found that the proportion, p, of high school seniors who believed that getting rich was an important personal goal was 80%. A

image text in transcribed
image text in transcribed
A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 80%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 225 high school seniors in his random sample, 188 believe that "getting rich" is an important goal. Can he conclude, at the 0.10 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H. H P H : 0 X S (b) Determine the type of test statistic to use. (Choose one) V 0=0 030 020 (c) Find the value of the test statistic. (Round to three or more decimal places.) 0* 00 X 5 ? (d) Find the p-value. (Round to three or more decimal places.) 0 (e) Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed? O Yes O No

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

Precalculus (Subscription)

Authors: Michael Sullivan, Michael Sullivan III

11th Edition

0135228980, 9780135228982

More Books

Students also viewed these Mathematics questions