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!
What percentage of the variation in state average test scores is explained by these two variables? Which variable(s) are significant? (b) Does Minitab flag any high leverage values? Do any states stand out with respect to Cook"s Di or DFITS? (c) Now let"s explore including expend (total state expenditure on secondary schools) in the model. Use a fitted line plot to create an added variable plot to evaluate the effects of expend after accounting for the self-selection of students taking the SAT. What do you learn? (d) Then also run the regression of the corresponding residuals and examine the residuals and case influence statistics, do any states stand out? (e) Any justification for removing this state from the analysis? Statistically Significant Outlier? (f) The residuals for Alaska in the original regression is above 50. Explain why it is not generally informative to judge the unusualness of an observation purely by the magnitude of its residual?
Assume that the class has 60 students and 60 minutes to complete the exams. How many students do you expect not to be able to complete the exam in the alotted time?
Suppose x follows a distribution with density function: f(x)=C*abs(x-2), 0 =
If we assume that the lifetime of this type of bulb has a standard deviation of 400 hours, can we conclude at the 5% significance level that the claim is true.
What are the assumptions that must be met for non-parametric statistics? What are the positives and the negatives of the chi-square test?
The following is the number of minutes to commute from home to work for a group of automobile executives.
The psychologist's task is to select the 10 high-anxiety subjects. Find the probability that the psychologist guesses at least 9 of the 10 high-anxiety subjects correctly.
For the samples summarized below, test the hypothesis that the two variances are equal, at α = 0.05
A student wants their College to offer Kickboxing classes as a Physical Education class. To justify that the class is desired he surveys 200 students and finds that 56% would be interested in taking the class.
Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the following questions. What is the likelihood the sample mean is at least $25.00?
State the null and alternative hypotheses. Using the test statistic, degrees of freedom and p-value, what can you conclude about the null hypothesis? What is the 95% confidence interval of the difference? Interpret the 95% confidence interval using t..
A continuous random variable, x, is normally distributed with a mean of $1000 and a standard deviation of $100. Convert each of the following x values into its corresponding z-score.
Standard deviation of 1.4 inches. What is the probability that the average length of a steel from a sample of 36 is more than 27.65inches long?
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