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A state biologist is investigating whether the proportion of frogs in a certain area that are bullfrogs has increased in the past ten years. The proportion ten years ago was estimated to be 0.20. From a recent random sample of 150 frogs in the area, 36 are bullfrogs. The biologist will conduct a test of H0:p=0.20H0:p=0.20 versus Ha:p>0.20Ha:p>0.20. Which of the following is the test statistic for the appropriate test?     z=0.20−0.24(0.24)(0.76)150√z=0.20−0.24(0.24)(0.76)150 A z=0.20−0.24(0.20)(0.80)150√z=0.20−0.24(0.20)(0.80)150 B z=0.24−0.20(0.24)(0.76)150√z=0.24−0.20(0.24)(0.76)150 C z=0.24−0.20(0.20)(0.80)150√z=0.24−0.20(0.20)(0.80)150 D z=0.24−0.20(0.20)(0.80)150−−−−−−−√

A state biologist is investigating whether the proportion of frogs in a certain area that are bullfrogs has increased in the past ten years. The proportion ten years ago was estimated to be 0.20. From a recent random sample of 150 frogs in the area, 36 are bullfrogs. The biologist will conduct a test of H0:p=0.20H0:p=0.20 versus Ha:p>0.20Ha:p>0.20. Which of the following is the test statistic for the appropriate test?     z=0.20−0.24(0.24)(0.76)150√z=0.20−0.24(0.24)(0.76)150 A z=0.20−0.24(0.20)(0.80)150√z=0.20−0.24(0.20)(0.80)150 B z=0.24−0.20(0.24)(0.76)150√z=0.24−0.20(0.24)(0.76)150 C z=0.24−0.20(0.20)(0.80)150√z=0.24−0.20(0.20)(0.80)150 D z=0.24−0.20(0.20)(0.80)150−−−−−−−√

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2CYU
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A state biologist is investigating whether the proportion of frogs in a certain area that are bullfrogs has increased in the past ten years. The proportion ten years ago was estimated to be 0.20. From a recent random sample of 150 frogs in the area, 36 are bullfrogs. The biologist will conduct a test of H0:p=0.20H0:p=0.20 versus Ha:p>0.20Ha:p>0.20. Which of the following is the test statistic for the appropriate test?

 
 

  • z=0.20−0.24(0.24)(0.76)150√z=0.20−0.24(0.24)(0.76)150

    A

  • z=0.20−0.24(0.20)(0.80)150√z=0.20−0.24(0.20)(0.80)150

    B

  • z=0.24−0.20(0.24)(0.76)150√z=0.24−0.20(0.24)(0.76)150

    C

  • z=0.24−0.20(0.20)(0.80)150√z=0.24−0.20(0.20)(0.80)150

    D

  • z=0.24−0.20(0.20)(0.80)150−−−−−−−√

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