HighTech Inc. randomly test its employees about company policies. Last year in the 460 random tests conducted, 26 employees failed the test. Develop a 90% confidence interval for the proportion of applicants that fail the test .

Explain why it is reasonable to assume that receiving 3 duplicate acks in tcp is an indication that the network is not currently congested.

Which of these is most responsible for differences between the twentieth century to the twenty-first century?

Perform the following tasks: a. create a class named testclass that holds a single private integer field and a public constructor. the only statement in the constructor is one that displays the message “constructing”. write a main()function that instantiates one object of the testclass. save the file as testclass.cpp in the chapter 08 folder. run the program and observe the results. b. write another main()function that instantiates an array of 10 testclass objects. save the file as test class array.c . run this program and observe the results.