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You are estimating the cost ($K) of optical sensors based on the power output of the sensor. Using the preliminary calculations from a data set of 8 sensors, determine the equation of the line. (Round your intermediate calculations to 3 decimal places)
ΣY = 2575 ΣX=680 ΣXY=241400 ΣX2=62600
A random sample of 1000 college students ages from 18-25 revealed that 234 voted for the American Idol. Similarly, 198 college students stated they voted in the 2006 midterm elections.
Students in the social work course received the following course grades. Create a frequency distribution for this data. Compute the mean. Determine the median.
If Kim expects to use phone for 21 hours per month, which plan must she choose?
Please summarrize, find the most important formulas, and explain a solve problem for each of this statictics topics: A. Simple regression and correlation B. Multiple regression and correlation
Mazda 6s resulting from a 10-mph crash into a concrete wall, the research group tests six cars of this type and assesses the amount of damage. Describe the population and sample for this problem.
A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?
The mean return for the random sample of 33 mutual funds is 14.93 percent with a standard deviation of 9.57. Test the null hypothesis: H0: mu = 15% at α = 0.05.
At.01 significance level, can we conclude that there is more variation in selling prices of oceanfront homes?
Sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours. with a ,95 probability, the margin of error is approximately.
Find the P value or an interval containing the P value for the sample test statistic.
Compute the following linear programming problem and describe the special case of a linear programming problem in which.
Calculate the Coefficient of Skewness and the Coefficient of Variation for time spent working on QM.
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