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Estimating the simple aggregate price index.
Betts Electronics purchases three replacement parts for robotic machines used in their manufacturing process. Information on the price of the replacement parts and the quantity purchased is given below.
Part
Price
2000 2004
Quantity
RC-33
$0.50
$0.60
320
340
SM-14
$1.20
$0.90
110
130
WC50
$0.85
$1.00
230
250
Compute a simple aggregate price index for 2004. Use 2000 as the base period.
A psychologist is studying the distribution of IQ scores of girls at an alternative high school. In wishing to estimate the average IQ scores in this school.
Create and attach a normal curve to this document with the following elements: the normal curve, a label of the average number of shoppers, and labels for the sample means of 441 and 446 shoppers. Include all the appropriate symbols.
Construct a probability distribution table. (b) if p=0.4, find the expected net profit. (c) what is the smallest value of P for which the owner will take the risk to undertake this project?
if two voters are randomly selected for a telephone survey, what is the probability that they one is a Democrat followed by a Republican? Round your answer to 4 decimal places.
An automotive manufacture claims mean price of small SUV is $25,071 if hypothesis test is performed how you should interpret a decision,
If you are using the method of least squares for fitting trends in an annual time series containing 25 consecutive yearly values,
A sample of 350 lenses and found 5 lenses with surface defects. Formulate an appropriate test for the qualification of the polishing machine using an α = 0.05."
Use the Poisson Distribution the indicated probabilities in one year, there were 116 homicide deaths in Richmond VA. For a randomly selected day
For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.
The accounting department at Western Materials Inc. national manufacturer of unattached garages, reports it takes two construction workers of a mean of 32 hours and standard deviation of 2 hours to erect Red Barn MODEL.
Tthe mean change score for the sample studied is an increase of 5.2. What is considered a medium effect size for a t test for dependent means?
an old saying in golf is you drive for show and you putt for dough. the point is that good putting is more important
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