An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.7 minutes. A random sample of 32 dive durations has a mean of 12.2 minutes and a standard deviation of 2.3 minutes. At α = 0.05 is there enough evidence to reject the oceanographer's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha Ho: Ha: ▼ ▼ (Type integers or decimals. Do not round.) The claim is the ▼ ▼ hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t= (Round to two decimal places as needed.) Obtain the P-value. 4 P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than a. (d) Interpret the decision in the context of the original claim. There enough evidence at the % level of significance to (Type integers or decimals. Do not round.) I the claim that the mean dive duration of a North Atlantic right whale is ▼ minutes.

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An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.7 minutes. A random sample of 32 dive durations has a mean of 12.2 minutes and a standard deviation of
2.3 minutes. At a = 0.05 is there enough evidence to reject the oceanographer's claim? Complete parts (a) through (d) below. Assume the population is normally distributed.
(a) Identify the claim and state Ho and H.
Ho:
H₂:
▼ ▼
(Type integers or decimals. Do not round.)
▼ ▼
hypothesis.
(b) Use technology to find the P-value. Find the standardized test statistic, t.
The claim is the
t=
(Round to two decimal places as needed.)
Obtain the P-value.
4
P=
(Round to three decimal places as needed.)
(c) Decide whether to reject or fail to reject the null hypothesis.
Ho because the P-value
greater than a.
(d) Interpret the decision in the context of the original claim.
There
enough evidence at the
(Type integers or decimals. Do not round.)
level of significance to
...
the claim that the mean dive duration of a North Atlantic right whale is
minutes.
Transcribed Image Text:An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.7 minutes. A random sample of 32 dive durations has a mean of 12.2 minutes and a standard deviation of 2.3 minutes. At a = 0.05 is there enough evidence to reject the oceanographer's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and H. Ho: H₂: ▼ ▼ (Type integers or decimals. Do not round.) ▼ ▼ hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. The claim is the t= (Round to two decimal places as needed.) Obtain the P-value. 4 P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than a. (d) Interpret the decision in the context of the original claim. There enough evidence at the (Type integers or decimals. Do not round.) level of significance to ... the claim that the mean dive duration of a North Atlantic right whale is minutes.
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