A large study of the heights of 880 adult men found that the mean height was 70 inches tall. The standard deviation was 4 inches. If the distribution of data was normal, what is the probability that a randomly selected male from the study was between 66 and 78 inches tall? Use the 68-95-99.7 rule (sometimes called the Empirical rule or the Standard Deviation rule). For example, enter 0.68, NOT 68 or 68%..

Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 17. Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between 49 and 151​? ​(b) What percentage of people has an IQ score less than 83 or greater than 117​? ​(c) What percentage of people has an IQ score greater than 151​?

•Consider the two types of marriage models examined in this chapter: the neoclassical model of marriage that focuses on specialization and exchange, and bargaining models.

–A. What is the primary difference between these two models? Why is one called the unitary model?

–B. What is the empirical evidence about which of the above two models of marriage seem most consistent with real life?

–C. For bargaining models, what is meant by the threat point?

Current activity in the hospital industry shows that hospitals are consolidating to form multihospital systems. Based upon your reading in the text, what do empirical studies indicate concerning cost savings of multihospital systems over single hospital systems? Why are multihospital systems expected to be cost saving? Why would we continue to see multihospital systems forming even if cost savings is not as evident as expected?

Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between 88 and 112​? ​(b) What percentage of people has an IQ score less than 76 or greater than 124​? ​(c) What percentage of people has an IQ score greater than 136​?

Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 4.351 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen rich environment. The products of the combustion were 4.736 g of CO2(g) and 2.423 g of H2O(g). Insert subscripts below to appropriately display the empirical formula of the gasoline additive:

CHPb

PROVIDE NOTES ON SECURITY AND INVESTMENT MANAGEMENT IN FINANCIAL INSTITUTIONS

• Overview of financial institutions investment practices
• Fundamental principles of sound security investments
• Formulating investment portfolio policies and strategies
• Banks investment portfolio content and management
• Factors affecting portfolio creation and management in banks
• The role and functions of Investment portfolio manager
• Portfolio management in insurance and pension funds
• Security and investment portfolio management empirical evidences

Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the empirical rule to determine the following.

​(a) What percentage of people has an IQ score between 70 and 130​?

​(b) What percentage of people has an IQ score less than 55 or greater than 145​? ​

(c) What percentage of people has an IQ score greater than 115​? ​

Assume X ~ ? (10, 4) where ? implies unknown.

1. What is the (approximate) distribution of if the sample size is 100? Briefly discuss the theorem underlying your answer.

2. What happens to the variance of as the sample size increases? Draw a diagram and explain.

3. What two values of (symmetric around the population mean) contain a) 75% and b) 95% of the distribution? Draw a diagram. Relate your answer to b) to the empirical rule.

Scores of an IQ test have a​ bell-shaped distribution with a mean of

100

and a standard deviation of

13

Use the empirical rule to determine the following.

​(a) What percentage of people has an IQ score between

87

and

113​?

​(b) What percentage of people has an IQ score less than

74

or greater than

126​?

​(c) What percentage of people has an IQ score greater than

126​?