Mathematics, 03.12.2019 03:30 swaggyd6603

# In the past the average age of employees of a large corporation has been 40 years. recently, the company has been hiring older individuals. in order to determine whether there has been an increase in the average age of all the employees, a sample of 25 employees was selected. the average age in the sample was 45 years with a standard deviation of 5 years. assume the distribution of the population is normal let α= 0.5 a, state the null and the alterative hypothesis b, test to determine whether or not the mean age of all the employees is significantly more than 40 years.

Answers: 2

Mathematics, 04.02.2019 04:26

What is the measure of angle tvu shown in the diagram below

Answers: 2

Mathematics, 01.02.2019 22:20

Awooden beam is (4y2 +4y + 4y) meters long if a piece ( y2 - 10) meters piece is cut express the length of the remaining piece of beam as a polynominal in y

Answers: 2

Mathematics, 01.02.2019 19:20

The resumâ´es of two male applicants for a college teaching position in chemistry are placed in the same file as the resumâ´es of two female applicants. two positions become available, and the first, at the rank of assistant professor, is filled by selecting one of the four applicants at random. the second position, at the rank of instructor, is then filled by selecting at random one of the remaining three applicants. using the notation m2f1, for example, to denote the simple event that the first position is filled by the second male applicant and the second position is then filled by the first female applicant, (a) list the elements of a sample space s; (b) list the elements of s corresponding to event a that the position of assistant professor is filled by a male applicant; (c) list the elements of s corresponding to event b that exactly one of the two positions is filled by a male applicant; (d) list the elements of s corresponding to event c that neither position is filled by a male applicant; (e) list the elements of s corresponding to the event a â© b; (f) list the elements of s corresponding to the event a âş c; (g) construct a venn diagram to illustrate the intersections and unions of the events a, b, and c.

Answers: 3

In the past the average age of employees of a large corporation has been 40 years. recently, the com...

Biology, 28.09.2018 04:31

Physics, 09.12.2015 05:10

Computers and Technology, 19.02.2017 10:50

Chemistry, 06.06.2017 08:04

Mathematics, 13.06.2017 11:50

History, 17.02.2016 21:29

Biology, 29.12.2016 14:10