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An important feature of digital cameras is battery life, the number of shots that can be taken before the battery needs to be recharged. The file digital cameras contains battery life information for 29 subcompact cameras and 16 compact cameras. (Data extracted from "Digital Cameras,"Consumer Reports, July 2009, pp. 28-29.)a. Is there evidence of a difference in the variability of the battery life between the two types of digital cameras? use(a = 0.05) b. Determine the p-value in (a) and interpret its meaning.c. What assumption about the population distribution of the two types of cameras is necessary in (a)? Is the assumption valid for these data?
The population proportion of customers under age 21 is 0.68.
And the rest of the people were from River City. Out of the sample, 19 people had some form of cancer. Thirteen of these people were from Laketown
A computer manufacturer offers a help line that purchasers
Calculate mortgage rates, production lot size, forecast the demand for the products, track epidemics and their spread, help solve crimes, even help estimate tax revenues.
Descriptive statistics (5-number summary, mean, mode, range and standard deviation) for each of the four variables along with an explanation of what the descriptive statistics tell us about the motion picture industry.
If the coefficient of determination between two independent variables is 0.20, what is the VIF?
Explain or predict the response variable in every regression study, we use one or more explanatory variables. These variables are also called predictor variables or independent variables.
thompson photo works purchased several new highly sophisticated processing machines. the production department needed
question 1 a gantt chart represents mainlyanswer an immediate identification of predecessor task. a record-keeping
Deceptive Statistics
It has been stated that 75% of the population have a smart phone. If you randomly choose 10 people, what is the probability that at least 9 people will say they have a smart phone?
Do a literature review on the use of Poisson
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