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. To help your restaurant marketing campaign target the right age levels, you want to find out if there is a statistically significant difference between the mean age of your customers and the age of the general population in your town: 43.1 years. A random sample of 50 of your customers shows a mean of 33.6 years and a standard deviation of 16.2 years. Test at a .05 level of significance.
2. Part of the assembly line will need adjusting if the consistency of the injected plastic becomes either viscous or not viscous enough as compared with a value (56.00) your engineers consider optimal. You will decide to adjust only if you are convinced that the system is "not in control"; that is, there is a real need for adjustment. The average viscosity for 13 recent measurements was 51.22 with a standard deviation of 3.18. Test at ? = .01.
3. Your Detroit division produced 135 defective parts out of the total production of 983 last week. The Kansas City division produced 104 defectives out of 1,085 produced in the same time period. Is the difference in defective rates between the two divisions statistically significant? Test at a .05 level.
the standard deviation of the lifetime of a sample of 15 electric light bulbs was computed to be 98 hours and the
a national grocers magazine reports the typical shopper spends six minutes in line waiting to check out. a sample of 16
Estimate the p-value for your t-score and is the difference of means statistically different from zero?
using two independent samples we test for a hypothesized difference between two population means. the population
a real estate agent has appointments with eight prospective clients. from past experience the agent knows that the
The average monthly cost per household for groceries in kentucky is $625/mo with a standard deviation of $125/mo. The average age of the memebers in each of the households in Kentucky is 22.5 yr with a standard deviation of 5.175 yr. Which data se..
the arizona department of transportation wishes to survey state residents to determine what proportion of the
Use the data above to construct a 95% confidence interval for the mean speed μ of vehicles traveling on Dan Allen Drive. (calculate y and s to 3 decimal places).
a sample of n8 scores has a mean of m10 after one score is removed from the sample the mean for the remaining score is
Develop a multiple linear regression equation that describes the relationship between tenure and the other variables in the chart above. Use the Analysis Toolpak located in Excel to perform this multiple regression.
obtain the general solution of a non-homogeneous ode y2y-5y-6y100e3x 18e-x. verify your solutions using matlab.yyhyp
a professor is doing a study of the relationship between students grades and their part-time work. he analyses data
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