Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1.Which set of characteristics is most likely to produce a significant diffrence for an independent-measurs t test?
a. large sample sizes and large sample variancesb. large sample sizes and small sample variancesc. small sample sizes and large sample variancesd. small sample sizes and small sample variances
2. One sample has a variance of s2=6 and a second sample has a variance of s2=8. If the two samples are the same size (n1=n2), then what is the pooled variance for the two samples?
a. 6b. 7c. 8d. 14
3. Which of the following sets of data provides the clearest diffrence between the two samples?
a. One sample has M=20 with s2=10 and the other has M=25 with s2=10b. One sample has M=20 with s2= 5 and the other has M=25 with s2=5c. One sample has M=20 with s2=10 and the other has M=30 with s2=10d. One sample has M=20 with s2= 5 and the other has M=30 with s2=5
A carton of 6 batteries contains 2 that are defective and 4 that are good. If we select 3 batteries at random form this carton, what is the probability that the sample contains exactly 1 defective battery?
The lapping process, which is used to grind certain silicon wafers to the proper thickness, is acceptable only if 'sigma', the population standard deviation of the thickness of dice cut from the wafers, is at most 0.50 mil.
For the following cases, determine whether the sampling is dependent or independent. Explain your conclusion.
A standard IQ test has mean of 98 and a standard deviation of 16. We want to be 99% certain that we are 8 IQ points of the true mean. Determine the sample size.
Brief description of the real-world situation or problem you selected to address, the independent and dependent variables you would study
A researcher wants to see whether the stress of final exams elevates the blood pressure of freshman women. When they are not under any unusual stress, healthy 18 year olds have a systolic blood pressure that averages mean of 120 mm Hg with a stand..
You wish to do a community needs assessment survey of a community to find out how much office space is needed by professionals in the community.
What can you say with 95% confidence about the percent of all American adults who think that humans developed from earlier species of animals.
Assume that random variables X1,.....,X50 are independent and all have probability density function fX(x) = 1/x for 1
Use the F test of ANOVA (assume α = 0.05) to decide whether or not there are any differences in true average lumen outputs between the three brands for this type of light bulb.
Assume a mean wage of $1,000 and standard deviation of $100. What's the probability of finding an employee with a wage of between $790 and $1000?
A grab bag comprises 11 $1 prizes, 7 $5 prizes, and 2 $20 prizes. Three prizes are selected at random. Determine the probability which exactly two $20 prizes are chosen?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd