
7. (a) which type of smoothing technique is generally better? (b) How do we determine which of the two smoothing techniques is better? (c) How can we forecast the values of a time series that contains

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Use Gaussian Elimination method to solve the following problem: 1X + 2Y + 2Z = 11 2X + 1Y + 3Z = 13 2X + 3Y + 1Z = 11

1. The probabilities of the independent events A and B are 0.4 and 0.5 respectively. Find the following probabilities: a) The probability of A and B occurring. b) The probability of A but not B oc

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Thirty companies comprise the DJIA. Just how big are these companies? One common method for measuring the size of a company is to use its market capitalization, which is computed by multiplying the nu

The following data represent the responses (Y for yes and N for no) from a sample of 40 college students to the question "Do you currently own shares in any stocks?" 26 said No 14 said Yes A) D

Scores on a test have a mean of 71 and the score of 80 falls at the 75th percentile. The socres have a distribution that is approximately normal. Find the score that at the 39th percentile.

show all work I should be able to click on each respective answer and see the mathematical process in the fxbar. I should be able to click on each respective answer and see the mathematical process

1.The table below shows the demand for Gadgets (they're like Widgets, only they're more mechanical) over a 5month period. Calculate exponential smoothing forecasts for each month and for July. Use a
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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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