We are interested in determining whether or not the variances of the sales at two music stores (A & B) are equal. A sample of 10 days of sales at store A has a standard deviation of 30, while a sample of 16 days of sales from store B has a standard deviation of 20.

1) What is the value of the Observed test statistic?

2) What are the results of the hypothesis test at a significance level of 0.05?

## Determining time series modelsIs it true that one of the important properties of time series models is that some sort of pattern in the data over time should be detected first and then used within the model? |

## Problem of linear programming maximizationThe shop wants a minimum of 60 man-years experience and wishes to maximize productivity. What machinists should they hire? |

## Information about confidence interval and probabilityA building developer has the opportunity to purchase several acres of land that is divided up into several lots for building single-family homes. |

## Probability of type one and type two errorAnswer the following questions using the null hypothesis as "the individual does not have the disease." a. What is the probability of Type I error? (Round your answer to 2 decimal places.) b. What is the probability of Type II error? (Round your answ.. |

## P value-critical value and state the final conclusionAssume that a simple random sample has been selected from a normally distributed population. Find the test statistic, P-value, critical value(s), and state the final conclusion. |

## Information about multiple regression modelSales of a product are influenced by the salesperson's level of education and gender, as well as consumer income, ethnicity, and wealth. |

## Distinguishes regression from anovaWhat distinguishes regression from ANOVA? What are the assumptions and limitations of each, and when should one be used in place of the other |

## Probability that the machine will overflowEstimate the probability that the machine will overflow an 8 oz cup. |

## Critical values for the alternative hypothesisUse the t-distribution table to find the critical values for the indicated alternative hypothesis, level of significance, a and sample size n1 and n2. Assume that the sample are independent, normal and random. Ha: u1 |

## Multiple linear regression-discriminate analysisGive an example of a situation in which multiple linear regression, discriminate analysis, canonical correlation, and multivariate analysis of variance might be used. |

## Independent random variables with meanThe time a cashier spends processing individual customer's order are independent random variables with mean 2.5 minute and standard deviation of 2. |

## Expected number of sightingsThe number of UFO (Unidentified Flying Object) sightings per week in Roswell, NM is a random variable with the cumulative distribution function given below. |

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd