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Marine biologists have been studying the effects of acidification of the oceans on weights of male beluga whales in the Arctic Ocean. The researchers want to create a 99% confidence interval to estimate the true mean weight of male beluga whales. They also want the margin of error to be 54 kg. Their data follow a normal distribution. The population standard deviation of weights of male beluga whales is o = 122 kg, and the researchers feel comfortable using this standard deviation for their confidence interval. What sample size do they need? (Round up to the nearest whole number. Example: If you get 101.2 round to 102)

Marine biologists have been studying the effects of acidification of the oceans on weights of male beluga whales in the Arctic Ocean. The researchers want to create a 99% confidence interval to estimate the true mean weight of male beluga whales. They also want the margin of error to be 54 kg. Their data follow a normal distribution. The population standard deviation of weights of male beluga whales is o = 122 kg, and the researchers feel comfortable using this standard deviation for their confidence interval. What sample size do they need? (Round up to the nearest whole number. Example: If you get 101.2 round to 102)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Marine biologists have been studying the effects of acidification of the oceans on weights of male beluga whales in the Arctic Ocean. The researchers want to create a 99% confidence interval to estimate the true mean weight of male beluga whales. They also want the margin of error to be 54 kg. Their data follow a normal distribution. The population standard deviation of weights of male beluga whales is o = 122 kg, and the researchers feel comfortable using this standard deviation for their confidence interval. What sample size do they need? (Round up to the nearest whole number. Example: If you get 101.2 round to 102)
Transcribed Image Text:Marine biologists have been studying the effects of acidification of the oceans on weights of male beluga whales in the Arctic Ocean. The researchers want to create a 99% confidence interval to estimate the true mean weight of male beluga whales. They also want the margin of error to be 54 kg. Their data follow a normal distribution. The population standard deviation of weights of male beluga whales is o = 122 kg, and the researchers feel comfortable using this standard deviation for their confidence interval. What sample size do they need? (Round up to the nearest whole number. Example: If you get 101.2 round to 102)
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