Bella Chen’s weekly gross earnings for the week ended October 20 were $2,600, and her federal income tax withholding was$554.76. Assuming the social security rate is 6% and Medicare is 1.5% of all earnings, what is Chen’s net pay?

Heights of women are approximately normally distributed with mean 64.6 inches and standard deviation 2.9. The minimum and maximum heights in order to be an FBI Police Officer (providing security at FBI offices) are 60 and 72 inches. What proportion of women fall in this range?

Decide which method (theoretical, relative frequency, or subjective) is appropriate, and compute or estimate the following probability. If you use the subjective method, explain your reasoning. Randomly meeting someone whose Social Security number ends in the same digit as yours

Let x represent the paycheck number for a weekly pay period. Let y represent the number of the week in the year. a. Write an expression to represent the calendar year-to-date amount. b. Write an expression for the Social Security tax for this pay period. c. Write an expression for the year-to-date Social Security tax. d. Write an expression for the Medicare tax for this pay period. e. Write an expression for the year-to-date Medicare tax. f. If C percent of the gross pay is withheld for federal taxes, write an expression for the weekly amount withheld for those taxes. g. Write an expression for the total annual federal tax withheld.

The Transportation Security Administration (TSA) is responsible for airport safety. On some flights, TSA officers randomly select passengers for an extra security check prior to boarding. One such flight had 76 passengers - 12 in first class and 64 in coach class. Some passengers were surprised when none of the 10 passengers chosen for screening were seated in first class. We can use a simulation to see if this result is likely to happen by chance. How would you use random digits to imitate one repetition of the process? What variable would you measure?

Approximately 20 million Americans work for themselves. Most run single-person businesses out of their homes. One-quarter of these individuals use personal computers in their businesses. A market research firm, Computer Intelligence InfoCorp, wanted to know whether single-person businesses that use personal computers are more successful than those with no computer. They surveyed 150 single-person firms and recorded their annual incomes. Can we infer at the 10% significance level that single-person businesses that use a personal computer earn more than those that do not?

Use the Social Security tax rate of 6.2 percent and Medicare tax rate of 1.45 percent to determine each tax and the total deduction.

In a USA Today survey of 510 people, 53% said that we should replace passwords with biometric security, such as fingerprints. The accompanying Statdisk data results from a test of the claim that half of us say that we should replace passwords with biometric security.

$$\begin{matrix} \text{Sample proportion:} & \text{0.5294118}\\ \text{Test Statistics, z:} & \text{1.3284}\\ \text{Critical z:} & \text{$\pm$1.9600}\\ \text{P-Value:} & \text{0.1840}\\ \end{matrix}$$

	Use the normal distribution as an approximation to the binomial distribution. Use a 0.05 significance level and answer the following:	What is the final conclusion?

Two friends are renting an apartment. They pay the landlord the first month's rent. The landlord also requires them to pay an additional half a month's rent for security deposit. The total amount they pay the landlord before moving in $1725. What is the monthly rent?

A rectangular security area is enclosed on one side by a wall, and the other sides are fenced. The length of the wall is twice the width of the area. The total cost of building the wall and fence is $13,200. If the wall costs$50.00/m and the fence costs $5.00/m, find the dimensions of the area.

In a USA Today survey of 510 people, 53% said that we should replace passwords with biometric security, such as fingerprints. The accompanying Statdisk data results from a test of the claim that half of us say that we should replace passwords with biometric security.

$$\begin{matrix} \text{Sample proportion:} & \text{0.5294118}\\ \text{Test Statistics, z:} & \text{1.3284}\\ \text{Critical z:} & \text{$\pm$1.9600}\\ \text{P-Value:} & \text{0.1840}\\ \end{matrix}$$

		Use the normal distribution as an approximation to the binomial distribution. Use a 0.05 significance level and answer the following:	What is the test statistic?

Todd Thompson weekly gross earnings for the week ended May 23 were $1,400, and his federal income tax withholding was$247.90. Assuming the social security rate is 6% and Medicare is 1.5% of all earnings, what is Thompson’s net pay?

Jason reads a report that says 80% of U.S. high school students have a computer at home. He believes the proportion is smaller than 0.80 at his large rural high school. Jason chooses an SRS of 60 students and finds that 41 have a computer at home. He would like to carry out a test at the $\alpha=0.05$ significance level of $H_{0}: p=0.80$ versus $H_{u}: p<0.80$ where p = the true proportion of all students at Jason's high school who have a computer at home. Check if the conditions for performing the significance test are met.

Recall that TCP can be enhanced with SSL to provide process-to-process security services, including encryption. Does SSL operate at the transport layer or the application layer? If the application developer wants TCP to be enhanced with SSL, what does the developer have to do?