Delivery time by courier services is important to stock brokers. One such firm wishes to estimate the average time taken by couriers delivering negotiable securities in New York City. Specifically, the firm randomly samples 36 courier pickup and delivery times. The collected data, in minutes, represent the time between pickup and delivery. Suppose the population standard deviation is 0.3 minutes

and the sample mean is 9.975 . Find the sample mean and compute. A 90-percent confidence interval for the true mean delivery time, ? is:
a. 9.852 to 10.05.
b. 119.60 to 119.80.
c. 119.62 to 119.78.
d. 119.26 to 119.87.
e. 9.893 to 10.057.


E

Business

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Which tactic for influencing others is a reference to the support of others as a reason for someone to agree to a request?

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Based on the free cash flow valuation model, the value of Weidner Co.'s operations is $1,200 million. The company's balance sheet shows $80 million in accounts receivable, $60 million in inventory, and $100 million in short-term investments that are unrelated to operations. The balance sheet also shows $90 million in accounts payable, $120 million in notes payable, $300 million in long-term debt, $50 million in preferred stock, $180 million in retained earnings, and $800 million in total common equity. If Weidner has 30 million shares of stock outstanding, what is the best estimate of the stock's price per share?

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