A forester wishes to predict the volume (in cubic feet) of usable lumber in a certain species of trees from the height (in feet) and diameter (in inches) of the trees. The height and diameter of 31 trees of a certain species were measured, the trees were cut down, and the volume of usable lumber was determined. The multiple linear regression model

Volume = β_{0} + β_{1}(Diameter) + β_{2}(Height) + β_{i}

is assumed to hold, where the deviations i are independent and Normally distributed with mean 0 and standard deviation . This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.

Based on these results, a 99% confidence interval for β_{0} is found to be -57.99 ± 23.87. We may conclude

A. if we tested the hypotheses H 0: β_{0} = 0, H_{a}: β_{0} ≠ 0, the P-value would be less than 0.01.

B. the estimate of β_{0} would tell us the volume of a tree of this species when height and diameter are 0.

C. Both choices are correct.

Using m-method solve the above lp : Using M-method solve the above LP. Does the problem has alternative optimal solution? If so, find all the alternative optimal solutions. |

Solve using simplex method : Q. solve using simplex method, Hence using the sensitivity analysis, find the new optimal solution of the LPP if the availability of the second constraint is changed from 11 to 15 |

Multiple linear regression model - anova table : This model is fit to the data using the method of least squares using statistical software, and the following ANOVA table is obtained |

Average number of putts per round : Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance |

Example on multiple linear regression model : This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained. |

Evaluate average driving distance : An old saying in golf is "you drive for show and you putt for dough." The point is that good putting is more important than long driving for shooting low scores and hence winning money. |

Multiple regression model : where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software. |

Regression model : The average number of putts per hole for each player and their average driving distance is used to predict their total winnings using the multiple regression model where the deviations εI are assumed to be independent and Normally distributed with.. |

Find the explanatory variables in this study : The height and diameter of 31 trees of a certain species were measured, the trees were cut down, and the volume of usable lumber was determined. Find the explanatory variable(s) in this study are |

## Questions related to the study demonstrated the statisticsDetermine whether the method of delivering teaching influences adherence with antiretroviral therapy. |

## Foundation statisticsAnswer all of these questions using R Commander. Include all graphs, outputs from R Commander. |

## Evaluate the average earningsIf is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately. |

## Simple random samples from the appropriate populationsBased on surveys conducted in 1989 and 1999, a researcher compared the proportion of high school age females interested in a career in science in 1989 with the proportion in 1999. He concluded that the proportions were not significantly different .. |

## Example on sampling variabilitySampling variability refers to the idea that different samples will include different individuals |

## Determine if there are patterns of either excellence or lackThese can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher. |

## Example on stratified random sampleResearchers are studying the absorption of two drugs into the bloodstream. Each drug is to be injected at three dosages. There are 24 people in the study, and they are randomly divided into six groups. |

## Evidence that females are being discriminated againstExamine the relationship between final grade and the reported hours per week each student said they studied for the course. Do we have evidence that females are being discriminated against? |

## Difference between the t and z distributionsThe correct set of hypotheses to test the effect of the bonus plan, the difference between the t and z distributions |

## Treatment based on a battery of psychological testsAt the end of 24 weeks of treatment, subjects were classified as responders or non-responders to treatment based on a battery of psychological tests. |

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