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1) The credit card debts of all college students have a distribution that is skewed to the right with a mean of $2840 and a standard deviation of $672

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1) The credit card debts of all college students have a distribution that is skewed to the right with a mean of $2840 and a standard deviation of $672. Find the probability that the mean credit card debt

2) A trimotor plane has three engines—a central engine and an engine on each wing. The plane will crash only if the central engine fails and at least one of the two wing engines fails. The probability of failure during any given flight is .005 for the central engine and .008 for each of the wing engines. Assuming that the three engines operate independently, what is theprobability that the plane will crash during a flight?

3) The weights of a sophisticated running shoes is normally distributed with a mean of 12 ounces and a standard deviation of 0.5 outcome. a) what is the probability that a shoe weighs more than 13 ounces. b) what must the standards deviations of weighs be in order for the company to state that 99.9% of it's shoe are less than 13 ounces?

4) A) Discuss the validity of any intelligence test in the primary-secondary-tertiary framework we discussed in Chapter 3. B) What are some of the strengths andweaknesses of attitude scales? C) Which of the various ways of assessing reliability would be most appropriate for a Guttman scale?

5) A) How might you go about generating some evidence for the validity of the Self-Consciousness Inventory? B) How can the criterion validity of a personality measure of “ego strength” (or other dimension) be established? C) Do you agree that “intelligent behavior can be observed”? What might be some of the aspects of such behavior?