As the network administrator for a growing ISP, you want to make efficient use of your network addresses. One of the networks addresses IANA assigned to you is a Class C network of 192.168.88.0. You have decided to use the addresses in this Class C network to satisfy the IP address requirements of 18 corporate customers who need between 20 and 24 addresses each. calculate a subnet mask that meets their needs. List the subnet mask and the first four subnetwork addresses the mask will create.

The digital centre in Washah Bank is interested to introduce a digital Islamic social finance platform for their customers. The digital centre conducted a survey to explore the appetite of the clients to use the digital platform for donation. 40 out of 80 of clients in age 31 to 40 are interested to use the platform. 53 out of 100 of the clients between 21 to 30 are interested to use the platform. Do the younger generation have more appetite to use digital platform for donation? (Use 0.05 level of significance)

A bakery prepares all its cakes between 4am and 6am so that they are fresh when customers arrive. The cost of baking a cake is $2 and selling price is $10. Demand for the day is estimated to be normally distributed with a mean of 20 and a standard deviation of 4.

a. If cakes are worthless if they are not sold on that day, what is the optimal number of cakes to bake?

b. If all day old cakes can be sold at a deeply discounted price of $1, how does that change the overage cost? What is the optimal number to bake?

The amount of time (in minutes) that a party hat to wait to be seated in a restaurant has an exponential distribution with a mean 15. Find the probability that it will take between 10 and 20 minutes to be seated for a table. If a party has already waited 10 minutes for a table, what is the probability it will be at least another 5 minutes before they are seated? If the restaurant decides to give a free drink to the top 10% of customers who have to wait the longest, at least how long will a party have to wait in order to get a free drink?

Answer true or false on the following

People are, not surprisingly, the most important element in the performance of an organization, and managing their performance is an entire subject in itself.

True

False

On an individual basis, performance is usually measured and managed through a process of appraisal.

True

False

The relationship between customer measures and willingness to purchase is, in any case, often far from straightforward.

True

False

Financial results are backward-looking and unimportant although they influence investors, banks, customers and suppliers in their willingness to trade with the business.

True

False

Agency Conflicts: Please select the correct choice within parenthesis.

Firms must provide the right incentives if they are to get (shareholders, managers, creditors) to focus on long-run value maximization. Conflicts exist between managers and stockholders and between stockholders (represented by managers) and -(employees, debtholders, customers). Managers' personal goals may compete with shareholder wealth maximization. However, managers can be motivated to act in their stockholders' best interests through (1) reasonable -(vacation, compensation, perquisite) packages, (2) firing of underperforming managers, and (3) the threat of hostile takeovers. If a firm's stock is undervalued, corporate raiders will see it as a bargain and will attempt to capture the firm in a hostile takeover.

(Stockholders, Bondholders) generally receive fixed payments regardless of how well the firm does, while -(stockholders, bondholders) earn higher returns when the firm's earnings are higher. Investments in (risky, safe) ventures, that have great payoffs to stockholders if successful but threaten bankruptcy if they fail, create conflicts. In addition, the use of additional (equity, debt, assets) increases stockholder/debtholder conflicts. Consequently, bondholders attempt to protect themselves by including (ethics, covenants, compensation) in bond agreements that limit firms' use of additional (equity, debt, assets) and constrain (customers', employees', managers') actions.

Calculate and report and valid present worth measures using the listed interest for all the three options given below. What is the name of the best option economically?

In order to start a coffee business, the Manager took a 300K loan from the bank. He/she will have to pay 10K monthly for three years.

a-Calculate the effective interest rate (per year).

b-If the coffee business makes a Revenue=19K/month and has an operational cost of 12K/Month, Calculate the PW if the study period is 5 years and the MARR is equal to 1.5% per month.

Solve by spreadsheet.

1. The song-length of tunes in the Big Hair playlist of a certain Statistics professors mp3-player vary from song to song. This variation can be modeled by the Normal distribution, with a mean song-length of μ=4.1 minutes and a standard deviation of σ=0.7 minutes. Note that a song that has a length of 4.5 minutes is a song that lasts for 4 minutes and 30 seconds.

From the time he set his mp3-player to shuffle, there has been 16 songs randomly chosen and played in succession. What is the chance that the 16-th song played is the 8-th to be longer than 4.1 minutes? Enter your answer to four decimals.

2. The number of people arriving per hour at the emergency room (ER) of a local hospital seeking medical attention can be modeled by the Poisson distribution, with a mean of 10 people per hour.

The inter-arrival time, X X, is defined as the time that passes between successive arrivals of patients seeking medical attention. It has been 5 minutes since the last person seeking medical attention arrived at the ER. What is the probability that at least 11 minutes (in total) will pass until the next medical-attention-seeking person passes through the ER doors? Use four decimals in your answer.

3.The number of customers entering a 24-hour convenience store every 10-minutes can be modeled by the Poisson distribution with a a mean of λ=5.2 customers. You are to look at the amount of time passing between successive customers entering the convenience store, represented by X

Compute the probability at most 3 minutes will pass between the arrival of one customer and the next customer. In answering this question, be sure to use your answer in (a) to two decimals. Enter your answer using four decimals

At least 1 minute has passed since the last customer entered the store. What is the probability that in total, at least 4 minutes will pass until the next customer enters this store? Use four decimals in your answer.

3. Test to see if there is a linear correlation between Age and Balance on a Visa card. Then predict the Balance for a person that is 30 years old.

The data collected below comes from people that live in Salinas. Listed below are the genders, ages and current balance on one specific type of Visa card.