An oceanographer claims that the mean dive duration of a North Atlantic right whale is11.6minutes. A random sample of35dive durations has a mean of12.3minutes and a standard deviation of2.2minutes. Atα=0.01is there enough evidence to reject the oceanographer's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. Question content area bottomPart 1(a) Identify the claim and stateH0andHa. H0: ▼ sigmaσppsigma squaredσ2muμ▼ equals=less than or equals≤less than<greater than or equals≥greater than>not equals≠enter your response hereHa: ▼ sigmaσmuμppsigma squaredσ2▼ greater than>greater than or equals≥equals=less than<not equals≠less than or equals≤enter your response here(Type integers or decimals. Do not round.) The claim is the▼ nullalternativehypothesis.

Assume that μ is the population mean dive duration of North Atlantic right whale.

Answered: An oceanographer claims that the mean…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 22SGR

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Question content area bottom

Part 1

(a) Identify the claim and state

and

Ha.

H0:	▼ sigmaσ pp sigma squaredσ2 muμ ▼ equals= less than or equals≤ less than< greater than or equals≥ greater than> not equals≠ enter your response here
Ha:	▼ sigmaσ muμ pp sigma squaredσ2 ▼ greater than> greater than or equals≥ equals= less than< not equals≠ less than or equals≤ enter your response here

(Type integers or decimals. Do not round.)

The claim is the

▼

null

alternative

hypothesis.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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