Question 10 2 pts A bass is a kind of fish that lives mostly in lakes or rivers.

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Question 10 2 pts A bass is a kind of fish that lives mostly in lakes or rivers. Adult bass in a nearby lake named Silver Lake have an average length of 12.3 inches with a standard deviation of 3 inches. Recently, fishermen in Silver Lake told a reporter that this year they have been catching adult bass that are smaller than usual. A research group interested in the size of the fish took a random sample of 100 adult bass from Silver Lake. The researchers found that the mean length of the bass in the sample was 11.2 inches. Which of the following is the most appropriate statistical conclusion about the difference of 1.1 inches between the sample mean of 11.2 inches and the population mean of 12.3 inches? O The researchers cannot conclude that the fish are smaller than what is normal because the difference of 1.1 inches is less than the standard deviation of 3 inches. O The researchers can conclude that the fish are smaller than what is normal because the sample mean should be almost identical to the population mean with a large sample of 100 fish. O The researchers can conclude that the fish are smaller than what is normal because the difference of 1.1 inches is much larger than the expected standard error of 0.3 inches

Explanation / Answer

The researchers can conclude that the fish are smaller than what is normal because the sample mean should be almost identical to the population mean with a large sample of 100 fishes.

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