Calculate the final result to two decimal places, where z = .1515 $\frac{z}{4}+z^4+\frac{7}{9}-.25z^2+\frac{2}{3}$

A) .48
B) 2.65
C) 1.48
D) 3.22
E) 5.48

Which one of the following purposes of research attempts to answer "why" questions?

A) exploration
B) description
C) prediction
D) explanation

An experiment was conducted to examine the effect of age on heart rate when a person is subjected to a specific amount of exercise. Ten men randomly selected from each of four age groups: 10-19, 20-39, 40-59, and 60-69. Each man walked a treadmill at a fixed grade for a period of 12 minutes, and the increase in heart rate (the difference before and after exercise) was recorded (in beats per minute). The data are shown in the table. Do the data present sufficient evidence to indicate differences in location for at least two of the four age groups? Test using the Kruskal-Wallis H test with = 0.01.
What is H?
______________
What is the critical value for the test statistic?
Reject if H > ______________
Conclude: ______________
There is ______________ of a difference in location.
Find the approximate p-value for the test above.
______________

In an effort to identify the true proportion of college freshman who are under 18 years of age,a random sample of 500 freshmen was taken.Fifty of them were under the age of 18.The value 0.10 is a point estimate of the true proportion of freshman under age 18.

Mike, Tom, and Larry invested $78,750, $22,500 and $123,750 respectively in a consulting business. They decided to expand the business by injecting an extra $180,000. How much should each invest in order to maintain the same proportion?

Determine the maturity date for each of the following notes. Consider leap years where necessary.
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