Calculus and Above

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For a class science experiment...

For a class science experiment, the students had to grow beans in a cup and see how tall they could grow them in two weeks. Their textbook suggested they could grow them to an average of 2 inches tall but the students thought they could grow them higher than that. The 27 students grew their plants to an average height of 2.21 inches with a standard deviation of 0.45 inches. Assume that plant growth follows a normal distribution.

What is the test statistic for the appropriate test of significance?

What is the test statistic for the appropriate test of significance?

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