In a random sample of males, it was found that 21 write with their left hands and 223 do not. In a random sample of females, it was found that 56 write with their left hands and 432 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of males and the second sample to be the sample of females. What are the null and alternative hypotheses for the hypothesis test? Oc. Họ: P1 "P2 H,: P, P2 O A. Ho: P1 P2 O B. Ho: P1" P2 H: P P2 Identify the test statistic. z= (Round to two decimal places as needed.) Identify the P-value. P.value = (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is V the significance level of a0.01, so v the null hypothesis. There v evidence to support the claim that the rate of left-handedness among males is less than that among females. b. Test the claim by constructing an appropriate confidence interval. ]<(P, -P2) <[ The 98% confidence interval is (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? Because the confidence interval limits than that among females. v there v to be a significant difference between the rates of left-handedness among males and females. There l v evidence to support the claim that the rate of left-handedness among males is less c. Based on the results, is the rate of left-handedness among males less than the rate of left-handedness among females? O A. It is not reasonable to conclude that the rate of left-handedness among males is less than the rate of left-handedness among females. O B. It is reasonable to conclude that the rate of left-handedness among males is less than the rate of left-handedness among females. Oc. It is reasonable to conclude that the rate of left-handedness among males is the same as the rate of left-handedness among females. O D. The assumptions required for the tests are not valid, so the results should not be used for inference.

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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.