The mean ± 1 SD of calcium intake (in mg) among 25 females, 12-14 years of age, below the poverty level is 6.56 ± 0.64. Similarly, the mean ± 1 SD of calcium intake among 40 females, 12-14 years of age, above the poverty level is 6.80 ± 0.76. Do we have sufficient evidence to conclude that the mean intake of calcium among females below the poverty level is significantly lower than the calcium intake of females above the poverty level?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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  1. The mean ± 1 SD of calcium intake (in mg) among 25 females, 12-14 years of age, below the poverty level is 6.56 ± 0.64. Similarly, the mean ± 1 SD of calcium intake among 40 females, 12-14 years of age, above the poverty level is 6.80 ± 0.76. Do we have sufficient evidence to conclude that the mean intake of calcium among females below the poverty level is significantly lower than the calcium intake of females above the poverty level?

 

  1. State the null and alternative hypothesis in mathematical notation
    1. Ho:

 

  1. Ha:

 

  1. What is the level of significance to be used?

 

 

  1. What is the appropriate test statistic? Why?

 

 

  1. What is the critical region?

 

 

  1. Compute for the test statistic. Show all your computations below.

 

 

 

 

 

 

 

 

 

 

 

 

  1. What is the statistical decision? What is your basis for such decision?

 

 

  1. How would you conclude your findings? Be specific.

 

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