At a certain university, the average cost of books was $390 per student last semester and the population standard deviation was $75. This semester a sample of 55 students revealed an average cost of books of $415 per student. The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?

Distinguish these plants from the stones they mimic : Lithops, also called Stoneplants, are a type of plant that resembles little stones. These plants have the ability to blend in with their surrounding, which affords them protection from predators. If you were in an area containing Lithops. |

Draw an entity-relationship diagram : Draw an Entity-Relationship Diagram (ERD) for the data storage requirements of a business described in the case study and Data Model Transformation. |

Hypothesis testing-compute statistical test : A sample of 40 observations is selected from one somewhat normal population. The sample mean is 102 and the sample standard deviation is 5. |

Discuss performance appraisal and evaluation consideration : Explain employee training and develop practices. Discuss the performance appraisal and evaluation consideration? |

Find test value for hypothesis : This semester a sample of 55 students revealed an average cost of books of $415 per student. The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis? |

What is the half life of radioactive iodine : the half life of a radiative carbon is 5700years, if the radioactive material left in the storage has activity of 5ci, what will be the activity after 3000years? |

Describe what segmentation is : Describe what segmentation is and discuss different segmentation bases you could use for your product/service |

What is mean fitness of the population in generation 2 : After some time, you start your experiment. Before exposing the population to pesticide, you are able to determine that the frequency of the resistance allele in the sample is 0.08. |

What is the new water level in the cylinder : A graduated cylinder contains 145mL of water. A 10.0g piece of iron (density = 7.86g/cm3 ) and a 22.0g piece of lead are added. |

## Description of probability based on z scoreWhat is the expected value of M and the standard error of M for a sample of n=4 scores? What is the expected value of M and the standard error of M for a sample of n = 25 scores? |

## T-statistics-p-value and hypothesis testingCompute the value of the test statistic. Determine the p-value; and at 93.7% confidence, test the above hypotheses. |

## Determining binomial probabilitySuppose that 30% of the population has black hair. In a randomly-selected group of six people, how probable is it that |

## The probability that return for common stocksThe article claims that the distributions of annual returns for both common stocks and long-term government bonds are bell-shaped and approximately symmetric. Assume that these distributions are distributed as normal random variables with the mea.. |

## Multiple comparison test-significance levelPerform all pairwise comparisons among the three programs, using a Tukey adjustment and an overall significance level of 0.05, then interpret all your results. |

## Create both absolute and relative frequency tablesProduce a printout of the frequency tables, showing the total of both frequencies. |

## Probability of selecting marblesA jar contains 12 marbles, 5 of which are blue and 7 of which are red. If 4 marbles are chosen at random and without replacement, what is the probability of selecting 3 blue ones and 1 red one? |

## Give the p-value for the hypothesis testFor testing the null hypothesis at the 4% level of significance that mu GE 100 vs the alternative that mu |

## Normal distribution in the spine bone density of womenIs spine bone density is normally distributed in young women with a mean of 1.0 g/cm 2 and a standard deviation of .10 g/cm 2 , then how many young women out of 100 would you expect to have bone densities less than .85 g/cm 2 ? |

## Psychology help-probability problemTwo events, A and B are equally likely. The chance that either A or B happens on a given trial of an experiment is 0.70, while the chance that they both happen on a given trial is only 0.40. |

## Manufacturers expense standard deviationFor a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months. |

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