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) Computer manufacturer offers help line that purchasers can call for help 24 hours a day 7 days a week. Clearing these calls for help in timely fashion is significant to company's image. After telling caller that resolution of problem is significant the caller is asked whether issue is "software" or "hardware" related. Mean time it takes technician to resolve software issue is 18 minutes with standard deviation of 4.2 minutes. This information was attained from sample of 35 monitored calls. For study of 45 hardware issues, mean time for technician to resolve the problem was 15.5 minutes with standard deviation of 3.9 minutes. This information was also attained from monitored calls. At.05 significance level is it reasonable to conclude that it takes longer to determination software issues? Determine the p-value?
Q2) Liquid chlorine added to swimming pools to combat algae has relatively short shelf life before it loses its effectiveness. Records point out that mean shelf life of 5-gallon jug of chlorine is 2,160 hours (90 days). As the experiment, Holdlonger was added to chlorine to determine whether it would rise the shelf life. A sample of nine jugs of chlorine had these shelf lives (in hours):
2,159
2,170
2,180
2,179
2,160
2,167
2,171
2,181
2,185
At.025 level, has Holdlonger increased shelf life of chlorine? Evaluate the p-value.
The estimated salary range is $4,500, the margin of error should be $100 and the desired level of confidence is 95%.
P-value to test hypotheses,
Below is a plot of the Olympic gold medal winning performance in the high jump (in inches) for the years 1900 to 1996.
Explain the terms parameter and statistics. Make sure the concepts of population and sample are included in the definitions.
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
Analysis of data sets assignment
36 values given here are based on summary statistics from research by cumming. Do you think that these data are normally distributed?
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
She is interested in testing the null hypothesis that the mean SAT score is the same for each type of schooling using the one-way ANOVA. Some summary statistics for the three groups are given below, followed by the one-way ANOVA table.
Using the Census data, the OH Registry of Motor Vehicles reveal the subsequent about the Autos owned by the 10 families residing in Smallville.
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.
This distribution is positively skewed. The standard deviation of the population is not known.
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