
I need to know the answers for the following 17 STATs homework questions, and show your work (the steps how to come up with the answer). 1. In a large metropolitan area, past records revealed that

2) (20 points) The last lessons have spent a lot of time describing the slope and intercept terms (and their variances) of the onevariable sample regression function. We also know that for any parti

Each problem needs its own excel file tab with all computations

Minimize (costs) Z = 4X1 + 8X2 Subject to Fiber 5X1 + 8X2 > 40 Protein 6X1 + 4X2 > 24 X1, X2 > 0 a.) What is the optimal value of the objective function? b.) What are

When we have data that are measured at the interval/ratio level of measurement, there are: A) less measures of dispersion to employ. B) none of the choice given. C) issues with the mean deviation.

I need help with some statistics homework

If the standard deviation is zero, we can conclude that: A) the mean is a good measure of the average. B) the data are heterogeneous. C) there is dispersion in the data. D) the mean will be zero.

2. Measures of dispersion are appropriate for which types of variables? A) Discrete B) Nominal C) Ratio D) Ordinal 4. When we have data that are measured at the interval/ratio level of meas

I need help with stats homework

Question 1 The time required for a citizen to complete the 2000 U.S. Census "long" form is normally distributed with a mean of 40 minutes and a standard deviation of 10 minutes. What proportion o
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 1. A school administrator wonders if students whose first language is not English score differently on the math portion of the sat exam than students whose first language is English. The mean SAT math score of students whose first language is english is 516 on the basis of data obtained from the college board. A simple random sample of 20 students whose first language is not English result in a sample mean SAT math score of 522. SAT math score are normally distributed with a population standard deviation of 114. Why is it necessary for SAT math scores to be normally distributed to test the hypothesis?
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