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Let X and Y be continuous random variables with the joint probability density function:
f(x,y)= 6x if x>or equals 0, y> or equals 0, x+y0 elsewhere
Find marginal probability density functions of X and Y, and are X and Y independent random variables?
1- ounce chocolate chip cookies resulted in following calorie amounts. At α=0.01 level, is there sufficient evidence that average calorie content is greater than 110 calories.
You work in the corporate office for a nationwide convenience store franchise that operates nearly 10,000 stores. The per-store daily customer count has been steady,
Assume the population standard deviation of unoccupied seats for all flights for this airline is equal to 4.103. Find a 90% confidence interval for μ and the mean number of unoccupied seats
An average computer mouse inspector can inspect 50 mice per hour. The 48 computer mice inspectors at a particular factory can only insppect 46 mice per hour with a standard deviation of 10.
in a poll respondents were asked whether they had ever been in a car accident. 177 respondents indicated that they had
Based on the genotypes of parents, offspring are expected to have genotypes distributed in such a way that 25% have genotypes denoted by AA, 50% have genotypes denoted by Aa
How does the MHMR compare to the state's figures on providing services to first-time admissions - Hypothesis test for one sample mean
At the 0.05 level of significance can it be concluded that the population mean height of treated plants is difference from 38 centimeters?
probability based on addition rule.a sample of automobile dealerships found that 19 of automobiles sold are silver 22
You conduct a hypothesis test and you observe values for the sample mean and sample standard deviation when n = 25 that do not lead to the rejection of H0. You calculate a p-value of 0.0667.
chi-square test for independent attributes.on the most recent tax cut proposal a random sample of democrats and
The sampling plan is perhaps the single most important aspect of generalizing research findings beyond the study sample. In a quantitative research study, what method of sampling allows for the greater generalization of findings?
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