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Suppose that for a set of numeric data, we have the following sample statistics:
x with bar on top equal 10
y with bar on top equal 89
sx = 36
sy = 123
r = 0.53
What is the estimated slope of the regression line, b1 to two decimal places? Hint: The formulas are given in the handouts in the "Ordinary Least Squares" discussion.
A study suggested that personality type is related to heart disease. Specifically, type A people,who are competitive, driven, pressured, and impatient, are more prone to heart disease.
Use a visual display to a categorical variable with four classifications. Which one would you use - the bar chart, the pie chart, or the pareto diagram? Explain"
i have two questions i need help with. please show me how to obtain the answers. they are in the attachment. thank
What is the probability that he can open the lock at random if he knows that the numbers in the combination cannot be repeated?
The manager wants to know the probability that any particular cookie will have fewer than 5. What type of probability distribution will most likely be used to analyze the number of chocolate chips per cookie?
If the sample standard deviation of the sample was $630 also the sample size was 50. Findout the 90% confidence interval of true mean.
Either use the p-value approach to hypothesis testing or use the significance level approach with α = .05.
a salesperson either makes a sale s or does not make a sale n with each of two potential customers. the simple events
Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance and determine the p-value and interpret its meaning.
how do you find chi square left and chi square right using the ti-84 plus given that you know the confidence level
according to a survey of american households the probability that the residents own 2 cars given annual household
in a sanitary landfill ch4 methane is to be collected as a by-product. two flows of methane mix adiabatically on a
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