Answered: of parents of children in high school…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

100%

Twenty years ago,

52%

of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that

343

900

parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the

α=0.01

level of significance.

Because

np01−p0=

▼

equals=

greater than>

less than<

not equals≠

10,

the sample size is

5% of the population size, and the sample

the requirements for testing the hypothesis

satisfied.

(Round to one decimal place as needed.)

What are the null and alternative hypotheses?

H0:

▼

muμ

sigmaσ

▼

less than<

greater than>

not equals≠

equals=

versus

H1:

▼

sigmaσ

muμ

▼

equals=

less than<

not equals≠

greater than>

(Type integers or decimals. Do not round.)

Find the test statistic.

z0=

(Round to two decimal places as needed.)

Find the P-value.

P-value=

(Round to three decimal places as needed.)

Determine the conclusion for this hypothesis test. Choose the correct answer below.

Since

P-value<α,

reject

the null hypothesis and conclude that there

sufficient evidence that parents feel differently today.

Since

P-value>α,

do not reject

the null hypothesis and conclude that there

is not

sufficient evidence that parents feel differently today.

Since

P-value>α,

reject

the null hypothesis and conclude that there

is not

sufficient evidence that parents feel differently today.

Since

P-value<α,

do not reject

the null hypothesis and conclude that there

sufficient evidence that parents feel differently today.

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