Degrees of freedom for test
A researcher computes a 2 × 4 chi-square test for independence. What are the degrees of freedom for this test? Explain your answer.
A. 2
B. 3
C. 4
D. 8
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A study was conducted with vegetarians to see whether the number of grams of protein each ate per day was related to diastolic blood pressure. The data are given below. What is the equation of the regression line for the relationship between prote
0.80 g of sulfur is combusted to form SO2. All ofteh heat evolved is used to raise the temperature of 100.0 g of water by 17.8 K. Specific heat of water is 4.813 J/g K. Calculate the heat of combustion of 1 mol of sulfur.
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Determine (a) the final pressure, (b) the change in the volume of the cylinder, and (c) the change in the enthalpy of the refrigerant-134a.
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Determine the maximum diameter of a steel ball that would float on water at 20oC. What would be your answer for an aluminum ball?
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