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tia_tia [17]
2 years ago
7

Suggest how the following requirements might be rewritten in a quantitative way. You may use any metrics you like to express the

requirements Req. 1 The library system shall be easy-to-use. Req. 2 The library system shall provide reliable service to all classes of user. Req. 3 The library system shall provide a rapid response to all user requests for book information
Computers and Technology
1 answer:
kotegsom [21]2 years ago
3 0

Answer:

Did you get the answer yet or not or should i sent it?

Explanation:

You might be interested in
Explain an application of a data communication system, including issues encountered with implementing the application.
aleksandrvk [35]

Answer:

Data communication system is referred to the exchange of information between the sender and receiver by use of transmission media.

Explanation:

The data communication system is referred to as the exchange of information between the sender and receiver by the use of transmission media.

some application of data communication system are;

videoconferencing,  

instant messaging

Telnet, etc.

In the data communication system, one information is transferred is transmission circuit then the media transfer the information to the receiver into the desired format.

the main issue is:

- data privacy

- cost of implementation

- use of the system for personal used during working hour

6 0
2 years ago
Restore points are created at regular intervals and just before you install software or hardware by what utility?
AlexFokin [52]

Answer:

a

Explanation:

System restoration and it is a tool to return the status of the system to a selected point previously created by the user or by the machine after installing a software or an important event.

3 0
2 years ago
Find a 95% confidence interval for the mean failure pressure for this type of roof panel.The article "Wind-Uplift Capacity of Re
aliya0001 [1]

Answer:

The 95% confidence interval would be given by (2.351;3.525)    

Explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

2) Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=2.938

The sample deviation calculated s=0.472

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=5-1=4

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,4)".And we see that t_{\alpha/2}=2.78

Now we have everything in order to replace into formula (1):

2.938-2.78\frac{0.472}{\sqrt{5}}=2.351    

2.938+2.78\frac{0.472}{\sqrt{5}}=3.525    

So on this case the 95% confidence interval would be given by (2.351;3.525)    

5 0
2 years ago
The process of checking data for validity and integrity before placing it in a data warehouse is called Group of answer choices
guajiro [1.7K]

Answer:

data cleaning

Explanation:

Data cleaning exemplifies the process which includes identifying the incorrect, or inaccurate data from the records. It further proceeds its function in correcting and replacing the correct data in the records or database. By adding information, by deleting incorrect information and modifying the incorrect information are some of the ways by which data cleaning is done.

7 0
2 years ago
Create a class that holds data about a job applicant. Include a name, a phone number, and four Boolean fields that represent whe
Firdavs [7]

Answer:

Explanation:

I don't know about the answer in java.

This is what I did in C#. Find attached the answer

public class JobApplication

   {

       private string name;

       public string Name

       {

           get { return name; }

           set { name = value; }

       }

       private string phoneNumber;

       public string PhoneNumber

       {

           get { return phoneNumber; }

           set { phoneNumber = value; }

       }

       private bool isSKilledInWordProcessing;

       public bool IsSkilledInWordProcessing

       {

           get { return isSKilledInWordProcessing; }

           set { isSKilledInWordProcessing = value; }

       }

       private bool isSkilledInSpreadsheets;

       public bool IsSkilledInSpreadsheets

       {

           get { return isSkilledInSpreadsheets; }

           set { isSkilledInSpreadsheets = value; }

       }

       private bool isSkilledInDatabases;

       public bool IsSkilledInDatabases

       {

           get { return isSkilledInDatabases; }

           set { isSkilledInDatabases = value; }

       }

       private bool isSkilledInGraphics;

       public bool IsSkilledInGraphics

       {

           get { return isSkilledInGraphics; }

           set { isSkilledInGraphics = value; }

       }

       public JobApplication(string name, string phoneNumber, bool isSKilledInWordProcessing,

           bool isSkilledInSpreadsheets, bool isSkilledInDatabases, bool IsSkilledInGraphics)

       {

           Name = name;

           PhoneNumber = phoneNumber;

           IsSkilledInDatabases = isSkilledInDatabases;

           IsSkilledInGraphics = isSkilledInGraphics;

           IsSkilledInWordProcessing = IsSkilledInWordProcessing;

           IsSkilledInSpreadsheets = isSkilledInSpreadsheets;

       }

   }

   class Program

   {

       static void Main(string[] args)

       {

           JobApplication jobApplication1 = new JobApplication("Emmanuel Man", "+39399399", false, true, true, true);

           CheckIfQualified(jobApplication1);

       }

       static void CheckIfQualified(JobApplication jobApplication)

       {

           if(jobApplication.IsSkilledInSpreadsheets && jobApplication.IsSkilledInGraphics  

               && jobApplication.IsSkilledInWordProcessing && jobApplication.IsSkilledInDatabases)

           {

               Console.WriteLine("The applicant, " + jobApplication.Name + " is qualified for the job");

           } else if (jobApplication.IsSkilledInSpreadsheets && jobApplication.IsSkilledInGraphics

               && jobApplication.IsSkilledInWordProcessing)

           {

               Console.WriteLine("The applicant, " + jobApplication.Name + " is qualified for the job");

           }

           else if (jobApplication.IsSkilledInSpreadsheets && jobApplication.IsSkilledInGraphics

               && jobApplication.IsSkilledInDatabases)

           {

               Console.WriteLine("The applicant, " + jobApplication.Name + " is qualified for the job");

           } else if (jobApplication.IsSkilledInWordProcessing && jobApplication.IsSkilledInGraphics

               && jobApplication.IsSkilledInDatabases)

           {

               Console.WriteLine("The applicant, " + jobApplication.Name + " is qualified for the job");

           }else if (jobApplication.IsSkilledInWordProcessing && jobApplication.IsSkilledInSpreadsheets

               && jobApplication.IsSkilledInDatabases)

           {

               Console.WriteLine("The applicant, " + jobApplication.Name + " is qualified for the job");

           }

           else

           {

               Console.WriteLine("The applicant, " + jobApplication.Name + " is not qualified for the job");

           }

       }

   }

5 0
2 years ago
Read 2 more answers
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