# Question

Refer to the Journal of Behavioral Decision Making (Jan., 2007) study of how guilty feelings impact decisions, Exercise. Recall that 57 students were assigned to a guilty state through a reading/writing task. Immediately after the task, the students were presented with a decision problem where the stated option has predominantly negative features (e.g., spending money on repairing a very old car). Of these 57 students, 45 chose the stated option. Suppose 10 of the 57 guilty-state students are selected at random. Define x as the number in the sample of 10 who chose the stated option.

a. Find P(x = 5).

b. Find P(x = 8).

c. What is the expected value (mean) of x?

a. Find P(x = 5).

b. Find P(x = 8).

c. What is the expected value (mean) of x?

## Answer to relevant Questions

Imagine that you are purchasing small lots of a manufactured product. If it is very costly to test a single item, it may be desirable to test a sample of items from the lot instead of testing every item in the lot. Suppose ...Given that x is a hypergeometric random variable, compute p(x) for each of the following cases: a. N = 8, n = 5, r = 3, x = 2 b. N = 6, n = 2, r = 2, x = 2 c. N = 5, n = 4, r = 4, x = 3 A bus is scheduled to stop at a certain bus stop every half hour on the hour and the half hour. At the end of the day, buses still stop after every 30 minutes, but because delays often occur earlier in the day, the bus is ...The random variable x has a normal distribution with μ = 300 and σ = 30. a. Find the probability that x assumes a value more than two standard deviations from its mean. More than three standard deviations from μ. b. ...Give four methods for determining whether the sample data come from a normal population.Post your question

0