Mathematics, 15.04.2020 15:49 grantjaylynn
A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer. Their answers revealed a mean of 8.5 minutes with a variance of 9 minutes. Which Excel statements will construct a 95% confidence interval for the time it takes a salesperson to talk to a potential customer.
a.
=8.5+1.96*9/SQRT(45), and =8.5-1.96*9/SQRT(45)
b.
=8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)
c.
=45+1.96*3/SQRT(9), and =45-1.96*3/SQRT(9)
d.
=45+0.95*3/SQRT(9), and =45-0.95*3/SQRT(9)
e.
None of the above.
A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer. Their answers revealed a mean of 8.5 minutes with a variance of 9 minutes. What is the point estimate for the average conversation length?
a.
45 salespersons
b.
9 minutes
c.
8.5 minutes
d.
5 minutes
e.
None of the above.
Answers: 1
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 20:30, brookieharrisop5n7us
What is the volume of the cone to the nearest cubic millimeter? (use π = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?
Answers: 1
Mathematics, 21.06.2019 22:00, meg7211
There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?
Answers: 2
Mathematics, 22.06.2019 03:00, pinnky98381
The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?
Answers: 3
Mathematics, 22.06.2019 03:00, Redeyestudio53
Graph the equation 8x - 4y = 56. then, trace the graph to find the missing value in the coordinate pairs below: (-10, 140 ) (0, ) (2, ) (4, ) ( , 0)
Answers: 2
You know the right answer?
A random sample of 45 door-to-door salespersons were asked how long on average they were able to tal...
Questions in other subjects:
Health, 05.10.2021 03:50
History, 05.10.2021 03:50
