Find the unknown boundary
Let x have a nonstandard normal distribution with mu=46 and sigma=9 find the unknown boundary a such that P(44<=x<=a) = 0.40
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A random sample of thirty-six 200 meter swims has a mean time of 3.02 minutes and a standard deviation of 0.08 minutes. Construct a 95% confidence interval for the population mean time.
The Pearson product-moment correlation coefficient, r, requires that variables be measured with _____________.
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A 8.60-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is sliding on a flat table. Taking the coefficient of kinetic friction as 0.223, find the tension in the string.
Find or make a graph of interest rates over the last 30-40 years. What do you see? Do you think interest rate risk or reinvestment risk is a bigger problem for today's bond investors?
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Two capacitors, C1 = 22.0 µF and C2 = 40.0 µF, are connected in series, and a 15.0 V battery is connected across them. (a) Find the equivalent capacitance, and the energy contained in this equivalent capacitor.
Warr Corporation just paid a dividend of $1.25 a share (that is, D0 = $1.25). The dividend is expected to grow 10% a year for the next 3 years and then at 3% a year thereafter.
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