An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.6 minutes. A random sample of 32 dive durations has a mean of 12.2 minutes and a standard deviation of 2.2 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 H, and H Ho: = 11.6 Ha: 11.6 (Type integers or decimals. Do not round.) The claim is the null hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. (Round to two decimal places as needed.)
An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.6 minutes. A random sample of 32 dive durations has a mean of 12.2 minutes and a standard deviation of 2.2 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 H, and H Ho: = 11.6 Ha: 11.6 (Type integers or decimals. Do not round.) The claim is the null hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. (Round to two decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.6 minutes. A random sample of 32 dive durations has a mean of 12.2 minutes and a standard deviation
of 2.2 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 Ha.
Но
11.6
%3D
Ha:
# 11.6
(Type integers or decimals. Do not round.)
The claim is the
null
hypothesis.
(b) Use technology to find the P-value. Find the standardized test statistic, t.
t=D
t%3D
(Round to two decimal places as needed.)
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