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The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 7 participants in each condition. Note that several values are missing in the table. What is the missing value for MSbetween? Source         SS      df      MS Between      20      xx      xx      F = xx Within         xx      xx        2 Total            xx     xx  

A researcher would like to examine whether there is a consistent, predictable relationship between political preference and personality. A sample of 100 students is obtained. The results are summarized in the following frequency distribution. Which chi-square value is obtained when conducting a chi-square test of independence, and which decision should be made regarding the hypothesis test using α = 0.05?                                                                         Political Preference                                                             Liberal                                         Conservative                      Type A Personality            ​ Observed Frequency = 15 Expected Frequency = 23.65 Observed Frequency = 40 Expected Frequency = 31.35 Observed Frequency = 28 Observed Frequency = 17                      Type B Personality Expected Frequency = 19.35 Expected Frequency = 25.65 ​

A chi-square statistic computed for a hypothesis test is χ2 = 10. If the sample size is n = 100, then the effect size using Cohen’s w is _____.

The following table shows the results of a two-factor ANOVA. Based on this table, what is the value for η2 for the A × B interaction? Source           SS      df      MS Between        36        3 A                   12        1      12     F = 4.00 B                      3       1        3     F = 1.00  A × B               21        1      21    F = 7.00 Within            84      28        3      Total             120      31  

The following table shows the results of a two-factor analysis of variance with 2 levels of factor A, 3 levels of factor B, and a separate sample of n = 5 participants in each of the treatment conditions. Note that several values are missing in the table. What is the missing value for the F-ratio for the A × B interaction? Source           SS      df      MS Between        80      xx A                     8      xx      xx    F = xx B                   xx      xx      20    F = xx A × B              xx      xx      xx    F = xx Within           xx      xx      xx      Total            176      xx

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  

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

The electron density of the 2s orbital is asymmetric.

The O-C-O bond angle in the CO32- ion is approximately __________.  

Why should a swabbed sample not be rubbed across the slide during preparation?