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1. If the sample size is 36 with three treatment means (response variables) and you are performing an ANOVA, then the degrees of freedom for the error term will be:

2. If the least squares equation for sales data is the following: Y = 10 + 1.3 X (in $ millions) what are the sales when X = 10 (in millions of dollars)?

3. A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume that a two-tailed test at the 0.10 significance level is to be used. The null hypothesis is not rejected if the computed t is:

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