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Daily demand for newspapers for the last 10 days has been as follows: 12, 13, 16, 15, 12, 18, 14, 12, 13, 15 (listed from oldest to most recent). Forecast sales for the next day using a three-day weighted moving average where the weights are 3, 1, and 1 (the highest weight is for the most recent number).
A. 12.8
B. 13.0
C. 70.0
D. 14.0
E. none of the above
Create a 95% confidence interval for true mean.
LPP using the graphical method. Solveout the following linear programming problem utilizing the corner point method.
According to Chebyshev's theorem, proportion of values from data set that is further than 2 standard deviations from the mean is at most?
What is the expected shape of the distribution of the sample mean?
According to the regional bar assoc., 60% of people who take the bar exam pass. Find the approximate probability that at least 61% of 200 randomly selected people taking the bar will pass. Round to three decimal places as needed.
Determine the largest village in terms of the population?
It is known that 60 percent of all registered voters in the 42nd congressional District are Republicans. There registered voters are selected at random from the district. Compute the probability that exactly 2 of the 3 selected are Republicans, u..
Find out which (t-, z- or neither) distribution is suitable Then if you can utilize either a t- or z- distribution, provide associated critical value (critical t- or z- score) from that distribution to reach given confidence level.
After performing a two sample t-test, you see a p-value of 0.0355. Of the following, which is the appropriate conclusion?
An SRS of 100 of a certain popular model car in 1993 found that 20 had a certain minor defect in the brakes. An SRS of 400 of this model car in 1994 found that 50 had the minor defect in the brakes. Let p1 and p2 be the proportion of all cars of t..
Is there sufficient evidence to support the claim that site has an effect on the amount of pesticide?
Construct a grouped frequency distribution using six classes.
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