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!
Q1) At certain manufacturing plant, machine creates ball bearings which must have a diameter of 0.50 mm. If machine makes ball bearings which are either too small or too large, ball bearings must be scrapped. Every hour, a quality control manager takes random sample of 30 ball bearings to test to see if process is "out of control" (i.e. to test to see if the average diameter differs from 0.50 mm.)
a) Mention the null and alternate hypothesis.
b) Explain a Type I error for this situation.
c) Explain a Type II error for this situation.
Q2) National poll reported that 58% of those with Internet access have made purchase online. To examine whether this percentage applies to its own state, a legislator commissions study. Random sample of 400 state residents who have Internet access is taken. Of those 400 respondents, 215 said that they have made purchases online. Does this sample give enough evidence to conclude that state varies from nation with respect to making purchase online at 0.05 level of significance?
What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?
Categorize the following as discrete or continuous random variables.
To recognize the width of the confidence interval.As the confidence level \"1 - α\" increases, the width of the confidence interval.
She has a history of being successful at getting a donor on 55 percent of her calls. If June has a quota to get at least four donors each day.
How large a sample should be taken if the desired margin of error is?
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Iindicate all samples are approximately Normal with no outliers. Is the ANOVA appropriate?
Difference in the mean number of times men and women order take-out dinners in a month? What is the p-value?
Now assume institutional cache is used. Hit rate for cache is 0.6. Determine the total average response time.
At least half the patients are under 15 years old? First, describe how this can be modelled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20 percent.
What do you find out when you perform the nonparametric statistics?
Determine the probability of choosing the area code at random which ends in the odd number if first digit cannot be 1 or 0?
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