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Given that Sxx = 265, Syy = 172, and Sxy = 184, what is the value of the linear correlation coefficient?
.74
.92
.86
.68
In an effort to estimate the mean amount spent per household per month in a small Canadian town, data were collected for a sample of 50 households. The sample showed an average amount of $2000 and a standard deviation of $500.
The distribution of IQ scores is normal, what proportion of the population would score higher than Bob? Lower than Bob?
which a correlation analysis or regression analysis could contribute to a better decision. The situation can be from a work, of general interest, or experienced in private life.
What is an interaction? Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?
Out of a random sample 167 students pass an exam out of the 300. how do you calculate an exact 99% confidence interval for the proportion of sudents who passed the exam?
question a convenience store owner hypothesizes that the median number of snow cones he sells per day is 36. a random
what are called the two variables in a scatter plot?a- independent variables and dependent variablesb- relative
Ball bearings are mannormally distributed with a meanufactured with a diameter of 5 mm. But the process has variation, so the diameter is normally distributed with a mean of 5 mm and a standard deviation of .02 mm. A) What proportion of ball beari..
a brewerys filling machine is adjusted to fill bottles with a mean of 31.2 oz. of ale and a variance of 0.003.
Develop a multiple regression paper in which your dependent variable is explained by several independent variables. You can choose any topic you are interested in but keep it simple. If you cannot find data to support your variables, then it is..
a population has a mean of 200 and a standard deviation of 50. a simple random sample of size 100 will be taken and the
Describe the sampling distribution of p-hat, the sample proportion of college students with the cell phones who send or receive the text messages with their phones.
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