Exhibit 13-7The following is part of an ANOVA table, which was the result of three treatments and a total of 15 observations. Source of Variation Sum ofSquares Degrees ofFreedom MeanSquare F Between treatments 64       Within treatments (Error) 96       Total         ​   Refer to Exhibit 13-7. If at a 5% level of significance, we want to determine whether or not the means of the populations are equal, the critical value of F is _____.

The following table shows the results of an analysis of variance comparing three treatment conditions. What is the value of h2, the percentage of variance accounted for? Source         SS      df      MS Between      30        2      15      F = 7.50 Within         60      30        2 Total            90      32 ​

Of the following substances, __________ has the highest boiling point.  

As the number of covalent bonds between two atoms increases, the distance between the atoms __________ and the strength of the bond between them __________.  

The enthalpy change for converting 10.0 g of ice at -25.0°C to water at 80.0°C is __________ kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O, ΔHfus = 6.01 kJ/mol, and ΔHvap = 40.67 kJ/mol  

Consider the following properties of an element:       (i)    It is solid at room temperature.       (ii)  It easily forms an oxide when exposed to air.       (iii) When it reacts with water, hydrogen gas evolves.       (iv)  It must be stored submerged in oil. Which element fits the above description the best?  

The ability of an atom in a molecule to attract electrons is best quantified by the __________.  

A typical triple bond __________.  

Which term describes the presence of red blood cells in urine?

What is the best technique to obtain a sample from a lymph node?