Questions LLC
Login
or
Sign Up
Ask a New Question
Math
Statistics
A random sample of 60 riders waited in line a mean time of 42 minutes with standard deviation 12 minutes. Find a 90% confidence interval for the populationmean waiting time in line
1 answer
90% = mean ± 1.645 SEm
SEm = SD/√n
You can
ask a new question
or
answer this question
.
Similar Questions
A random sample of size 81 is taken from a large population, measuring the time it takes to complete a driver’s license
Top answer:
95% = men ± 1.96 SEm SEm = SD/√n I'll let you do the calculations.
Read more.
1. A random sample of size 49 is taken from a large population, measuring the time it takes to complete a driver’s license
Top answer:
95% interval = mean ± 1.96 SEm SEm = SD/√(n-1), but you can just use n I hope this helps.
Read more.
1. A random sample of size 49 is taken from a large population, measuring the time it takes to complete a driver’s license
Top answer:
Check this answer. http://www.jiskha.com/display.cgi?id=1279306420
Read more.
A random sample of size 49 is taken from a large population, measuring the time it takes to complete a driver’s license
Top answer:
If your sample size is large (n is greater than or equal to 30), use z-value. If you have a small
Read more.
at union springs elamentary shcool car riders line up at 2:15 pm . after 15 minutes it is time for the other students go home ?
Top answer:
Just draw a timeline. How is that hard? Draw a timeline for 2:15 all the way to 2:30
Read more.
A hospital claims that the mean waiting time at its emergency room is 25 minutes. A random sample of 16 patients produced a mean
Top answer:
60
Read more.
Two riders, A and B leave the starting line at the same time. A takes 12 minutes to complete one lap and the B takes 18 minutes.
Top answer:
LCM(12,18) = ?
Read more.
Luther waited 50 minutes in line to buy tickets to a play. While waiting, Luther played his video game for 12 minutes and read a
Top answer:
50 - 12 - 25 = 38 - 25 = ?
Read more.
81. Random people versus read about the time it takes with you tomorrow in the morning. Standard deviation of the super random
Top answer:
To find the critical values for this hypothesis test, we need to use a t-distribution with n-1
Read more.
Hi there, I am working on a few homework assignments and having trouble with a few questions. I sincerely appreciate any and all
Top answer:
Sure, I can help you with that! To test the bank's claim, we need to set up the null hypothesis (H0)
Read more.
Related Questions
Laurel appears at Comedy Cafe at a random time between 1:00 and 2:00. Hardy turns up at a random time between 2:00 and 2:30. The
A study conducted by an airline showed that a random sample of nine of its passengers disembarking at the Cleveland airport,
the average length of time for students to register for fall classes at a certain college has been 50 minutes. a new
Tia generated a list of random numbers to simulate an experiment based on the waiting times at a supermarker checkout line.The
The times taken to complete a statistics test by all students are normally distributed with a mean of 120 minutes and a standard
A random sample of forty-eight 200 meter swims has a mean of 3:12 minutes and a standard deviation of .09 minute. Construct a
Alexis is investigating the screen time for adult smartphone users in her region. She selects 14
adult smartphone users from her
It is known that the amount of time needed to change the oil in a car is normally distributed. A random sample of 100 oil
It is known that the amount of time needed to change the oil in a car is normally distributed with a standard deviation of 5
It is known that the amount of time needed to change the oil in a car is normally distributed with a standard deviation of 5