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In an effort to make a healthier product, the Oriental Spice Sauce company has reduced the...

In an effort to make a healthier product, the Oriental Spice Sauce company has reduced the amount of sodium in their product to 900mg. In addition, the standard deviation of the amount of sodium should be 130. To make sure this new product continues to meet the standard, a random sample of 29 bottles is taken, and the standard deviation for the sample was 183.8264. Is there evidence at α=0.05 that the standard deviation of the sodium content exceeds the desired level? Assume the population is normally distributed. Step 2 of 5 : Determine the critical value(s) of the test statistic. If the test is two-tailed, separate the values with a comma. Round your answer to three decimal places.

math   Statistics-And-Probability   
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Answer #1

Rejection Region
This is right tailed test, for α = 0.05 and df = 28
Critical value of Χ^2 is 41.337
Hence reject H0 if Χ^2 < 41.337

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