Consider the following conditions of beginning inventory and the stated results:
Beginning Cost of Inventory Goods Sold Net Income

BWT, Inc. shows the following data in its financial statements at the end of the year. Assume all securities were outstanding at the beginning of the year:
6.125% convertible bond, convertible into 33 shares of common stock. Issue price $1,000, 100
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bonds outstanding.
6.25% convertible preferred stock, $100 par, 2,315 shares outstanding. Convertible into 3.3
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shares of common stock, Issue price $100
8% convertible preferred stock, $100 par, 2,572 shares outstanding. Convertible into 5 common
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shares, Issue price $80
9,986 warrants are outstanding with an exercise price of $38. Each warrant is convertible into 1
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share of common.
Average market price of common is $52.00 per share.
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Common shares outstanding at the beginning of the year were 40,045.
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Net Income for the period was $200,000, while the tax rate was 40%.
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What was the after-tax interest charge?

What is the best way to avoid data-snooping bias?

A study of a company's practice regarding the payment of invoices revealed that on the average an invoice was paid 20 days after it was received. The standard deviation equaled five days. Assuming that the distribution is normal, what percent of the invoices were paid within 15 days of receipt?

Out of the last 154 times that the interest rates have been cut, the stock price of Company XYZ dropped 72 times. The probability that company XYZ's stock drops at the next rate cut is an example of what type of probability?