Document1 - 2 Support for Corporate Sustainability Variable Mean StDev 90% CI Support 992 67.755 26.871 (66.350, 69.160) a. Locate the 90% confidence interval on the printout. b. Use the sample mean and standard deviation on the printout to calculate the 90% confidence interval. Does your result agree with the printout? c. Give a practical interpretation of the 90% confidence interval. d. Suppose the CEO of a CPA firm claims that the true mean level of support for sustainability is 75 points. Do you believe this claim? Explain.

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.