Question

Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.

A safety administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in hic (standard head injury condition units). The safety requirement is that the hic measurement should be less than 1000 hic. Use a

0.050.05

significance level to test the claim that the sample is from a population with a mean less than 1000 hic. Do the results suggest that all of the child booster seats meet the specified requirement?

648648

609609

11941194

556556

547547

592592

What are the hypotheses?

A.

Upper H 0H0:

muμequals=10001000

hic

Upper H 1H1:

muμgreater than or equals≥10001000

hic

B.

Upper H 0H0:

muμless than<10001000

hic

Upper H 1H1:

muμgreater than or equals≥10001000

hic

C.

Upper H 0H0:

muμgreater than>10001000

hic

Upper H 1H1:

muμless than<10001000

hic

D.

Upper H 0H0:

muμequals=10001000

hic

Upper H 1H1:

muμless than<10001000

hicYour answer is correct.

Identify the test statistic?

(Round to three decimal places as needed.)

Answer #1

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim.
A safety administration conducted crash tests of child booster
seats for cars. Listed below are results from those tests, with
the measurements given in hic (standard head injury condition
units). The safety requirement is that the hic measurement should
be less than...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim.
A safety administration conducted crash tests of child booster
seats for cars. Listed below are results from those tests, with
the measurements given in hic (standard head injury condition
units). The safety requirement is that the hic measurement should
be less than...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim. A
safety administration conducted crash tests of child booster seats
for cars. Listed below are results from those tests, with the
measurements given in hic (standard head injury condition units).
The safety requirement is that the hic measurement should be less
than...

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