You are testing a claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds. You

Question

2 months ago

11

You are testing a claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds. You

find the initial conclusion of your test fails to reject the null hypothesis. State the final conclusion.
There is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is not 15 seconds.

There is not sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is not 15 seconds.

There is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds.

There is not sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds.

Mathematics

1 answer:

AnnZ [12.3K] · Answer 1 · 2026-03-24T15:48:40+03:00

Answer:

There is ample evidence to substantiate the assertion that the standard deviation of the duration all women take to wash their hair in the morning is 15 seconds

Step-by-step explanation:

We must first articulate the hypotheses while comprehending the statement’s context. The assertion claims that the standard deviation of time spent washing hair in the morning by all women is 15 seconds. In mathematical symbols, we express this as follows:

σ = 15

The presence of an equality sign qualifies this assertion as our null hypothesis;

H0: σ = 15

Our alternative hypothesis is the negation of the prior hypothesis;

Ha: σ ≠ 15

We learn that the preliminary outcome of the test does not reject the null hypothesis. In simple terms, this indicates that we do not reject the assertion that the standard deviation of time all women spend washing their hair in the morning is, in fact, 15 seconds, as this assertion represents our null hypothesis. A failure to reject a hypothesis during testing signifies that there is enough evidence to support it. Hence, there is enough evidence to affirm that the standard deviation of time all women spend washing their hair in the morning is 15 seconds

You are testing a claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds. You

A. C. E. F.

Which correspond to 2, 3, 5, and 6.