Mathematics, 28.07.2020 17:01 kernlife

A long-time authorized user of an account makes 0.2 seconds between keystrokes. One day, data are recorded as someone typed the correct username and password. The average time between keystrokes was 0.3 with a standard deviation equal to 0.1183. The sample size was 25. 1. At a 1% level of significance, is this an evidence of an unauthorized attempt? Hint: Use a statistical test.
2. Can you apply the z-test and the normal approximation of the Z test statistic to this set of data? Are the conditions on the data for the test satisfied?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, bryannnnv

Can someone answer this question? : )

Answers: 1

continue

Mathematics, 21.06.2019 21:30, quinteroalex2001

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Answers: 2

continue

Mathematics, 21.06.2019 22:30, emmanuelmashao5504

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.

Answers: 1

continue

Mathematics, 21.06.2019 23:00, DisneyGirl11

In an equilateral triangle, each angle is represented by 5y+3. what is the value of y? a. 9.7 b. 10.8 c. 11.4 d. 7.2

Answers: 1

continue

You know the right answer?

A long-time authorized user of an account makes 0.2 seconds between keystrokes. One day, data are re...