A random sample of 25 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. We want to determine if the average age of all the students at the university is significantly more than 24. Assume the distribution of the population of ages is normal. Using ? = .05, it can be concluded that the population mean age is

A. not significantly different from 24.
B. significantly different from 24.
C. significantly less than 24.
D. significantly more than 24.


Answer: D

Business

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Benjamin Stone opened Stone's Repairs on March 1 of the current year. During March, the following transactions occurred and were recorded in the company's books:1. Benjamin, the sole stockholder, invested $25,000 cash in the business in exchange for common stock. 2. Benjamin contributed $100,000 of equipment to the business in exchange for common stock. 3. The company paid $2,000 cash to rent office space for the month of March. 4. The company received $16,000 cash for repair services provided during March. 5. The company paid $6,200 for salaries for the month of March. 6. The company provided $3,000 of services to customers on account. 7. The company paid cash of $500 for utilities for the month of March. 8. The company received $3,100 cash in advance from a customer for

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