Please help answer question 1 to 8 The symbol P (Freshman union Junior) reads as

Question

Please help answer question 1 to 8 The symbol P (Freshman union Junior) reads as the probability of a. Freshman or Junior b. Freshman and junior c. Junior if freshman d. Junior with freshman In medical testing, the probability that a diseased person receives a negative test result is called a. Sensitivity b. Specificity c. False positive rate d. False negative rate A probability can be any value between 0 and 1 a. True b. False The set of techniques and tools used to draw conclusions about a population based on sample data is called a. Deduction b. Inferential statistics c. Induction d. Descriptive statistics The standard error of the mean is best defined as the a. sum of squares of sample divided by n - 1 b. error that occurs when some mean falls in the critical region. c. z score of a mean. d. standard deviation of a sample. A positive predictive value (PPV) of 0.50 for a lung cancer test means that a. If a person has lung cancer, they are 50% sure that they have it. b. If a person has lung cancer, they have a 50% chance of testing positive. c. If a person has brain cancer, they have a 50% chance of testing positive. d. If a person tests positive, they have a 50% chance of having lung cancer. When you test a hypothesis, you would say that you have enough evidence when a. the probability is greater than 5% b. the probability is equal to 1% c. the probability is less than 5% d. the probability is less than 1% Two events are considered independent if one event can affect the other. a. True b. False

Explanation / Answer

1 (a) Freshman or Junior

2 (d) False negative rate

3) (a) True. A probability lies between 0 and 1

4) (b) Inferential Statistics

5) (d) it is the standard deviation of a sample

6) (d) If a person tests positive, he has a 50% chance of having Lung cancer.

7) (d) The probability is less than 1%

8) (b) False

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