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Test for single Proportion.
One kind of plant has only blue flowers and white flowers. According to a genetic model, the offspring of a certain cross have a 75% chance to be blue flowering, and a 25% chance to be white flowering, independently of one another. Two hundred seeds of such a cross are raised, and 142 turn out to be blue flowering. Are the data consistent with the model? Answer yes or no, and explain briefly.
What is probability of selecting 2 families neither had taxes prepared by H&R Block?
Determine expected cell counts if null hypothesis is true and show them in a two-way table. Determine the chi-square() statistic?
Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0?
Records also point to that interviewing committee of bank officers approves 85% of individuals they interview. Determine probability that Ann's loan request is approved.
Determine the coefficient of determination R 2 . Determine standard error of the estimate s e .
What can be completed to remedy multicollinearity.
what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?
Find out the regression equation Determine the value of Rsquare? Comment on value.
A sample of 200 traffic accidents this year showed 74 persons were also involved in another accident within the last five years. Use the .01 significance level. Can we use z as the test statistic? Tell why or why not.
You draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck.
Explain a Type I error for this situation. Explain a Type II error for this situation.
Sampling distributions. Given a normal distribution with μ = 50 and standard deviation σ = 9, if a sample of n = 100 is selected.
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