Use the given statement to represent a claim. Write its complement and state which is [tex]$H _0$[/tex] and which is [tex]$H _{ a }$[/tex].

Given: [tex]$\sigma=13$[/tex]

Find the complement of the claim.

[tex]$\sigma \neq 13$[/tex]

Which is [tex]$H _0$[/tex] and which is [tex]$H _a$[/tex]?

A. [tex]$H _0: \sigma=13$[/tex]

B. [tex]$H _a: \sigma \neq 13$[/tex]



Answer :

To address the problem, we start by identifying the claim and its complement, then determine which hypothesis corresponds to the null hypothesis ([tex]$H_0$[/tex]) and which corresponds to the alternative hypothesis ([tex]$H_a$[/tex]).

Given the claim:
[tex]\[\sigma = 13\][/tex]

First, we need to find the complement of the claim. The complement of the statement "[tex]\(\sigma = 13\)[/tex]" is "[tex]\(\sigma \neq 13\)[/tex]".

So, the complement is:
[tex]\[\sigma \neq 13\][/tex]

In hypothesis testing, the null hypothesis ([tex]$H_0$[/tex]) typically represents the default or initial claim, and the alternative hypothesis ([tex]$H_a$[/tex]) represents the complement or the opposing outcome.

Thus:
[tex]\[ H_0: \sigma = 13 \][/tex]
[tex]\[ H_a: \sigma \neq 13 \][/tex]

Now we look at the given choices to identify which one correctly states [tex]$H_0$[/tex] and [tex]$H_a$[/tex]:

A. [tex]\(H_0: \sigma=13\)[/tex]
B. [tex]\(H_0: \sigma=13\)[/tex]
C. [tex]\(H_0: \sigma \leq 13 \quad H_a: \sigma < 13 \quad H_a: \sigma \leq 13 \quad H_a: \sigma=13\)[/tex]
D. [tex]\(H_0: \sigma \neq 13\)[/tex]
E. [tex]\(H_0: \sigma=13\)[/tex]
F. [tex]\(H_0: \sigma < 13 \quad H_a: \sigma=13 \quad H_a: \sigma > 13 \quad H_a: \sigma=13\)[/tex]
G. [tex]\(H_0: \sigma=13\)[/tex]
H. [tex]\(H_0 \quad \sigma \geq 13\)[/tex]
I. [tex]\(H_0: \sigma=13\)[/tex]

The correct statement of hypotheses is:
[tex]\[ H_0: \sigma = 13 \][/tex]
[tex]\[ H_a: \sigma \neq 13 \][/tex]

Based on the given choices, the correct hypothesis pair is stated in choice A:
[tex]\[ A. \, H_0: \sigma = 13 \][/tex]

Therefore, the correct answer is:
[tex]\[ A \][/tex]

Answer:This means the null hypothesis is that the standard deviation is 13, and the alternative hypothesis is that the standard deviation is not 13.

Step-by-step explanation:

To represent a statistical hypothesis and its complement based on the given statement, we need to follow the standard practice of defining the null hypothesis (

0

H

0

) and the alternative hypothesis (

H

a

).

Given:

=

13

σ=13

The claim:

13

σ

=13

Complement of the claim:

=

13

σ=13

In hypothesis testing, the null hypothesis (

0

H

0

) is typically the statement of no effect or no difference, and it is the complement of the claim we want to test. The alternative hypothesis (

H

a

) represents the claim or the effect we are testing for.

Given the claim

13

σ

=13:

Null hypothesis (

0

H

0

):

=

13

σ=13

Alternative hypothesis (

H

a

):

13

σ

=13

So, the correct representation is:

A.

0

:

=

13

H

0

:σ=13

B.

:

13

H

a

=13