Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A computer system uses passwords constructed from the 26 letters (a to z) or 10 integers (0 to 9). Suppose there are 10000 users on the system with unique passwords. A hacker randomly selects (with replacement) passwords from the potential set.
A) There are 9900 users with unique 6 character passwords on the system and the hacker randomly selects 6 character passwords. What is the mean and standard deviation of the number of attempts before the hacker selects a user password?
B) Suppose there are 100 users with unique 3 character passwords on the system and the hacker randomly selects 3 character passwords. What is the mean and standard deviation of the number of attempts before the hacker selects a user password?
C) Which system is more secure the 6 character or the 3 character password protected system?
She decided to investigate and gather the following sample information. Would it be reasonable for her to conclude that union nurses earn more? Use the .02 significance level. What is the p value?
A recent study stated that if a person chewed gum, the average number of sticks of gum he or she chewed daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per d..
Describe the target population, sampling frame, sampling unit, and observation unit. Discuss any possible sources of selection bias or inaccuracy of responses.
Describe what assumptions must be met to use this test. Finally, where in your course project data set might you employ a paired t-Test?
The odds of the Dallas Cowboys winning this year's Super Bowl are 3 to 1. Compute the probability of the Cowboys winning
A psychologist has designed a questionnaire to measure individuals' aggressiveness. Assume that the scores on the questionnaire are normally distributed with a standard deviation of 80.
A manufacturer of 35-mm cameras knows that a shipment of 30 cameras sent to the large discount store contains 8 defective cameras. The manufacturer also knows that the store will choose two of the cameras at a random, test them, and accept the shi..
What is the stock's value at it's highest on 15 days of the year? (Assume that there are 240 trading days in a year).
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = . 05, does vehicle type vary by mall location?
Assume grades in college accounting class are normally distributed with a mean of 82 and a standard deviation of 7. what is the probability that a randomly selected student from this class will have a grade lower than 65?
A researcher believes that if she uses a different text the students will score differently on the standardized test but she doesn't know what the difference is.
It could not do anything with the airport and suffer a loss of revenue. The current value of raised revenue from a new airport is in question.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd