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Heights and weights for boys and girls. Suppose you are designing a study to investigate the relationship between height and weight for boys and girls.
(a) Specify a model with parallel regression lines that could be used to predict height separately for boys and for girls. Be sure to identify all variables and describe all parameters in your model.
(b) How many columns in a worksheet would be required to fit this model with statistical software? Describe each column.
You must use Hadoop technologies to analyze the Yelp 2016 challenge dataset - Summarize the number of reviews by US city, by business category.
we flip a fair coin 10 times. what is the conditional probability of getting 10 heads given that the number of heads is
it is reasonable to model the number of winter storms in a season as with a poisson random variable. suppose that in a
women own on the average 25 pairs of shoes. this is based on a survey of female adults by kelton research for new york
I hypothesized that girls in my class have the same blood pressure levels as boys. The probability value for my null hypothesis was 0.15. So I conclude that the blood pressures of the girls were higher than boys'. Which kind of mistake did I make?
For the experiments defined in Questions 1-4, write the set of all possible outcomes (the outcome space), also note whether the outcomes are equally likely, and whether they are mutually exclusive.
Determine and plot the probability mass function and probability distribution function of the contract award amount (in millions of dollars).
1.To boost holiday sales, a jewelry store in Bismarck, North Dakota, is advertising the following promotion:
motorola obtains cell phones from its contract manufacturer located in china to serve u.s. market. the u.s. is served
In a class of 40, 16 driver a car made outside the United States. What is the confidence interval for the total population of students at the 95% level?
I never understood the concept of the Empirical Rule and Chebyshev's Rule. Can you explain it to me and provide me with some sample problems please?
Using the .05 significance level, can we conclude that there is a positive association between the two variables?
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