$\"\"$

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The alternative hypothesis is $\"\"$ .

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The claim written as a mathematical statement is $\"\"$ .

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The null hypothesis is rejected .

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The popluation of standard deviation is known and $\"\"$ .

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The significance is called for $\"\"$ .

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The standard deviation is $\"\"$ .

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$\"\"$

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By using the graphing calculator to find the $\"\"$ value.

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The value of $\"\"$

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The value of $\"\"$ .

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Substitute $\"\"$ and $\"\"$ .

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$\"\"$

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Substitute $\"\"$ and $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$ .

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$\"\"$ .

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Therefore, the null hypothesis is rejected since the evidence does not reject the claim of . $\"\"$

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$\"\"$

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The value of $\"\"$ ,the null hypothesis is rejected since the evidence does not reject the claim of $\"\"$ .