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A sample of 50 students was asked how much time they spend on average a week in front of a computer. The sample mean and sample standard deviation were 15.8 and 2.7 hours, respectively. Estimate with 95% confidence interval the mean number of hours students spend in front of a computer a week.
Preferred Stock
A class of ownership in a corporation that has a higher claim on its assets and earnings than common stock, often with predetermined dividend payments.
Cumulative
Describing something that increases or accumulates over time, often used in reference to dividends or data.
Par Value
A nominal or face value assigned to securities, such as stock, which has no direct relation to their market value.
Paid-in Capital
The amount of money that a company receives from issuing shares of stock, representing the funds contributed by shareholders in exchange for ownership interest.
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