$500 is contributed at the beginning of each period on a semi-annual basis for 5 years. If the rate of interest is 5% compounded semi-annually, determine how much interest was earned over this time.

A) $500.00
B) $462.36
C) $402.00
D) $741.73
E) $302.00

A random sample of size n = 7 from a normal population produced these measurements:
2.1, 4.3, 2.4, 2.7, 4.0, 3.5, 3.6.
Calculate the sample variance, .
______________
Construct a 95% confidence interval (CI) for the population variance, .
CI = ______________ Enter (n1, n2)
Test using = 0.05. State your conclusions.
Test Statistic = ______________
Critical Value(s) = ______________
Conclusion: ______________
There is ______________ to indicate that is different from 0.8.
What is the approximate p-value for the test in part (c)?
______________

A hypergeometric probability distribution shows the probabilities associated with possible values of a discrete random variable when these values are generated by sampling with replacement and the probability of success, therefore, changes from one trial to the next.

Belgium has two official languages: French and Dutch.Assume that about 60% of the people speak Dutch and 40% of the people speak French.Define the event A as the event that two randomly selected Belgians speak the same language.What is the complement of event A?

A) 0.48
B) 0.52
C) {Dutch,French}
D) {(Dutch,French) , (French,Dutch) }

A sample of 100 information systems managers had an average hourly income of $40.00 with a standard deviation of $8.00.The 95% confidence interval for the average hourly wage (in $) of all information system managers is

A) 38.684 to 41.316.
B) 32 to 48.
C) 38.432 to 41.568.
D) 39 to 41.

Which of the following correlations represents a weak relationship?

A) -0.26
B) -0.46
C) -0.66
D) -0.86

{Gross Profits Narrative} If the probability of s₁ is 0.2,the optimal alternative using EOL is ____________________.