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A large study concluded 78% of all college students drink moderately. What is the probability a random sample of 225 college students will have a sample proportion that is within 5% of what the study...

it has been estimated that 65% of all computers being used in the classrooms are Macs. A random sample of 300 classrooms is selected and the number of macs is counted. What is the probability the...

Suppose that 40 percent of the hourly employees in a large film are in favor of union representation, and a random sample of 10 employees is contacted and asked for an anonymous response. What is...

because of high interest rates, a firm reports that 10 percent of its accounts receivable from other buisness films are over due. If an accountant takes a random sample of 8 such accounts determine...

Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the five who inherit the genetic disorder. Determine whether the table describes...

A population is formed my placing 5 balls labelled 1,2,3,4 and 5 respectively. Mean of this population is 3. Someone who does not know the contents of this bag will estimate the balue of mean by randomly...

A population is formed my placing 5 balls labelled 1,2,3,4 and 5 respectively. Mean of this population is 3. Someone who does not know the contents of this bag will estimate the balue of mean by randomly...

When a large number of a particular seed is planted, it is known that 70% of the seeds will germinate. In addition, the germination of one seed is independent of the germination of any other seed...

Current research for social media usage shows a chronbach's alpha of 0.91 between gen xers and millennials. Can I use this value to calculate a good sample size for my own study? If so, how?

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