Consider the following hypothesis test: Ho: H = 16 Ha: H # 16 A sample of 40 provided a sample mean of 14.19. The population standard deviation is 4. a. Compute the value of the test statistic (to 2 decimals). (If answer is negative, use minus "-" sign.) b. What is the p-value (to 4 decimals)? c. Using a = .05, can it be concluded that the population mean is not equal to 16? Yes Answer the next three questions using the critical value approach. d. Using a = .05, what are the critical values for the test statistic (to 2 decimals)? ±

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Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

Counting Theory

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