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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
Identify a key variable that you want to predict, and specify at least two variables that you think would be key in making that prediction.
How many months must be sampled for analysis to be 99% confidence that the error in estimating the average monthly price of gasoline is at most $0.03.
Find the maximum total allowable weight if we want a 0.975 probability that this maximum will not be exceeded when 17 males are randomly selected.
What is sampling with replacement, and why it is used?
The average time it took then to change a water pump was 18 minutes. The SD of the sample was 3. Find the 99% of the interval of the true mean.
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
The Travel Weekly International Air Transport Association survey asked business travelers regarding the purpose for their most recent business trip.
In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely..
Estimate the true proportion of all Americans who are in favor of gun control legislation using a 90% confidence interval.
The annual demand for a product is 1,000 units. The company orders 200 units each time an order is placed. The lead-time is 6 days, and the company has determined that 20 unites should be held as a safety stock.
Teacher asked each of her students how many novels they had read in previous six months. Results are shown below. Create the frequency table for the number of novels read.
What do you mean by degrees of feedom in statistics? Explain the concept of degrees of freedom for each of the following hypothesis tests.
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