1. 30% of the population in a southwestern community are Spanish speaking Americans. A Spanish speaking person is accused of killing a non Spanish speaking American and goes to trial. Of the first 12 potential jurors only 2 are Spanish speaking Americans, and 10 are not. The defendant's lawyer challenges the jury selection claiming bias against her client. The government lawyer disagrees saying that the probability of this particular jury composition is common. Compute the probability and discuss the assumptions

2. Dr Richmond, a psychologist is studying the daytime television viewing habits of college students. She believes 45% of college students watch soap operas during the afternoon. To further investigate, she selects a sample of ten.

Develop a probability distribution for the number of students in the sample who watch soap operas.

a. Find the mean and the standard deviation of this distribution.

b. What is the probability of finding exactly four watch soap operas?

c. What is the probability less than half of the students selected watch soap operas?

Computing the total tax : In following example, second line of the table signifies that tax due on a salary of $2,000.00 is $225.00 plus 16% of excess salary over $1,500.00 (that is, 16% of $500.00). Compute the total tax. |

Probabilities using hyper geometric distribution : What is probability of selecting 2 families neither had taxes prepared by H&R Block? |

Plotting control limits for the mean outside diameter : Plot the control limits for the mean outside diameter and the range. |

Preparation of sales budget : Assuming that the trend of sales indicated in part (1) is to continue in 2009, compute the unit sales volume to be used for preparing the sales budget for the year ending December 31, 2009. Place your answer in a columnar table similar to that in .. |

Probability distribution-sample who watch soap operas : Develop a probability distribution for the number of students in the sample who watch soap operas. |

Statistical procedure for developing a mathematical equation : Statistical procedure for developing a mathematical equation. |

Determining average performance evaluation : Average performance evaluation is higher for managers hired from outside firm compared with those promoted from within? What other stories does this graph tell? |

Approximated through the poisson distribution : Assume the arrival of these emails is approximated by the Poisson distribution. |

Implementing class diagram : Design a class diagram representing a book described by the following statement. “A book comprises of the number of parts that in turn are composed of the number of chapters. |

## Probability of drawing ballIf you draw one ball from the urn what is the probability that it is blue or white? |

## Probability when mean and standard deviation is givenA loaf of bread is normally distributed with a mean of 22 oz and a standard deviation of 0.5 oz. What is the probability that a loaf is more than 22.25 oz? |

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## Hypothesis testing on multiple populationsTo test whether there is a significant mean difference among the three. |

## Test whether music reduces studying capacityTest whether the music reduces studying capacity at a .05 level of significance. |

## Findout the variance also standard deviationFindout the variance also standard deviation for the 2 distributions above. Evalute the variation of the data sets. |

## Computing degrees of freedom for f statisticStore used ANOVA to test if mean sales for each credit card were equal. What are the degrees of freedom for F statistic? |

## Much susceptible to hypnosis which university of tennesseeUniversity of Waterloo are much susceptible to hypnosis which University of Tennessee undergraduates. Set up H0 and Ha for the test. |

## Estimating population proportion-sample sizeDetermine the sample size needed in order to be 99% confident that the sample proportion of the current customer accounts is within .03 of the true proportion of all current accounts for this company. |

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