#### What is the probability that someone from her family will win the raffle?Identify each of the following as examples of nominal, ordinal, interval, or ratio scales of measurement. (4 points each)

Identify each of the following as examples of nominal, ordinal, interval, or ratio scales of measurement. (4 points each)

A poll of registered voters in Florida asking which candidate they support

The length of time required for a wound to heal when using a new medicine

The number of telephone calls arriving at a switchboard per five-minute period

The distance first-year college football players can kick a ball

Mental health diagnoses present in an elderly population

The rankings of employees on their job performance

(Points : 24)

Question 2. 2.

Two hundred raffle tickets are sold. Your friend has five people in her family who each bought two raffle tickets. What is the probability that someone from her family will win the raffle?

(Points : 4)

Question 3. 3. Jolie has 45 minutes to do her statistics homework. If the mean is 38 minutes and the standard deviation is 3, calculate Jolie’s z score. Once calculated, interpret your findings in terms of Jolie’s performance.

(HINT: use the normal distribution and the probability that other students performed better or worse.) (Points : 8)

Question 4. 4. A psychologist measures units of change for a memory test after students are given an opportunity to sleep only four hours. The following change units were obtained: 7, -12, 4, -7, 3, -10. Find the a) mean, b) median, c) mode, d) standard deviation, e) range, and f) variance. (Points : 24)

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