The article Effect of Temperature on the pH of Skim Milk (Journal of Dairy Research [1988]: 277

The article €œEffect of Temperature on the pH of Skim Milk€ (Journal of Dairy Research [1988]: 277€“ 280) reported on a study involving x = temperature (8C) under specified experimental conditions and y = milk pH. The accompanying data (read from a graph) are a representative subset of that which appeared in the article:

Do these data strongly suggest that there is a negative linear relationship between temperature and pH? State and test the relevant hypotheses using a significance level of .01.

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x 4424 24 25 38 38 40 y 6.85 6.79 6.63 6.65 6.72 6.62 6.57 6.52 x 45 50 55 56 60 67 70 78 y 6.50 6.48 6.42 6.41 6.38 6.34 6.32 6.34 678 ΣУ 104.54 ΣΧ2-36,056 2)"-683.4470 уху- 4376.36