An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.5 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 = 0.01 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 μ = 11.5 Ha: μ # 11.5 (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= (Round to two decimal places as needed.)

An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.5 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 = 0.01 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 μ = 11.5 Ha: μ # 11.5 (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= (Round to two decimal places as needed.)

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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