Test the claim that on average, salaries in Smalltown are less than salaries in Largetown. A random sample of 34 Smalltown salaries yields a mean of $60630 and standard deviation of $1741, while a random sample of 30 Largetown salaries yields a mean of $60715 and a standard deviation of $1652. Use a 0.10. Let Population 1 be Smalltown. 1. The fact that salaries are not known to be normally distributed is not important in this test because: O both sample means are at least thirty O this is a T-test O this is a Z-test O both sample sizes are at least thirty The hypotheses are: O Ho:µi < P2; Ha: 41 > H2 O Ho:p1 = p2; Ha: p1 p2 %3D O Ho:p1 < p2; Ha: p1 > p2 O Ho:µ1 > µ2; Ha:µ1 < µ2 О Но: р1 2 р2;B На:рі < р2 O Ho:p = p2; Ha:µ1 # µ2 This is a O twoO rightO left tailed test and the distribution used is OT since both o values are not known OZ since both o values are known OZ since testing two proportions

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Permutations and Combinations

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Counting Theory

The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.