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The J.J. Bone Company uses exponential smoothing to forecast the average daily call volume at its call center. The forecast for last month was 782, and then the actual value turned out to be 792. Obtain the forecast for next month for each of the following values of the smoothing constant:α = 0.1, 0.3, 0.5.
A single-sample acceptance attributes sampling plan is required to have a producer's risk of 0.06 for an acceptable quality level of 0.5% nonconforming, and a consumer's risk of 0.10 for a rejectable quality level of 5% nonconforming. Use Minitab ..
The Complement rule states that the probability of an event not occurring is
Does a very high long-run elasticity of demand in an industry necessarily imply that there is no public policy issue?
in a market research study conducted by a local winery on white wine preference the following results were found. of a
For the following assignment, use the Rank Correlation Utilizing ExcelUse a rank correlation coefficient to test for a correlation between two variables. Use a significance level of α=0.05.
In the FBI promotion system, last year's decoration points had a standard deviation equivalent to 7.1. This year 27 of the tested individuals had scores with a standard deviation of 4.2.
Of 900 consumers surveyed, 414 said they were very enthusiastic about a new home decor scheme. What is the 99% confidence interval for the population proportion?
An experiment was conducted to compare the effects of two teaching styles for grade 12 mathematics. the individuals in experiment were grade 12 math students from one particular high school.
a quality engineer knows from past data that in a shipment lot the number of wire cables that have tensile strengths
a certain drug causes kidney damage in 1 of the patients. suppose that the drug is to be tested on n patients and let e
If the first head occurs on the first toss, you win $1. If the first head occurs on toss 2 or on toss 3 you win $2 or $3, respectively. If no heads appear, you lose $1 (that is, win -$1). Find the joint probability function for Y1 and Y2.
Triathalon Times Jeff Parent is a statistics instructor who participates in triathalons. Listed below are times (in minutes and seconds) he recorded as riding a bicycle for five laps through each mile of a 3-mile loop.
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