Mathematics, 14.11.2019 02:31 mathbrain58
Students monitor surveys 1200 undergraduates from 100 colleges semiannually to understand trends among college students. recently, the students monitor reported that theaverage amount of time spent per week on the internet was 19.0 hrs. assume that the standard deviation is 5.5 hours.
(a) give the mean and standard deviation in minutes.
(b)calculate the 95% confidence intervial in minutes from your answer
(c)explain how you could have directly calculated this intervial from the 95% that you calculated in the previous exercise
Answers: 2
Mathematics, 21.06.2019 15:40
Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie
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Mathematics, 21.06.2019 22:30
Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.
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Mathematics, 21.06.2019 23:30
The graph of the the function f(x) is given below. find [tex]\lim_{x \to 0\zero} f(x)[/tex] [tex]\lim_{x \to 1+\oneplus} f(x)[/tex] [tex]\lim_{x \to 0-\zeroneg} f(x)[/tex]
Answers: 1
Students monitor surveys 1200 undergraduates from 100 colleges semiannually to understand trends amo...
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