Freedom for chi-square goodness-of-fit test
A researcher selects a sample of 80 people and records the frequency of participants choosing a low, moderate, or high calorie dessert in a buffet. What are the degrees of freedom for this chi-square goodness-of-fit test?
A. 2
B. 3
C. 79
D. 80
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If this flowing blood were then to enter a region of stenosis where the diameter of the aorta was only .5 cm, what wold the approximate pressure in this narrowed region be?
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.
Consider a defibrillator, acting as a 32 μF capacitor and a 47 kΩ resistor in a series RC circuit. The circuitry in this system applies 5000 V to the RC circuit to charge it. what is the maximum charge on the capacitor?
A researcher computes a 2 × 4 chi-square test for independence. What are the degrees of freedom for this test? Explain your answer.
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.
What is minimum grams of acetic acid and of sodium acetate dehydrate that must be used to prepare a buffer with a volume of 250 mL and a pH of 5.12 that must be able to hold the PH within + or - 5.12 even if .01 mol of NaOH or HCL is added to the
If 3 different factor levels show a lot of variation between levels this implies: A large amount of error within each level therefore the ANOVA will not be accurate
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