It is estimated that 80% all twenty-year-old men have weights ranging from 140 to 150 lb. Assuming the weight distribution can be adequately modeled by a normal distribution with mean 145 lb and standard...

It is estimated that 80% all twenty-year-old men have weights ranging from 140 to 150 lb. Assuming the weight distribution can be adequately modeled by a normal distribution with mean 145 lb and standard...

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Find the probability and interpret the results. If convenient, use technology to find the probability. The population mean annual salary for environmental compliance specialists is about $66,000....

40% of students are in class 10 are asked for an anonymous response. What is the probability that exactly 4 employees will be in favor of union representation?

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...

The incubation time of Rhode Island Red chicks is normally distrubuted with a mean of 23 days and standard deviation of approximately 2 days. If 1000 eggs one being incubated, how many chicks do we...

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...

Assume that women's heights are normally distributed with a mean given by mu equals 62.4 inμ=62.4 in, and a standard deviation given by sigma equals 2.6 inσ=2.6 in. (a) If 1 woman...

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 new computer is sold with innovative flash memory. When compared to computers with conventional memory, the new machine is clearly faster, but initial tests indicate there is more variation in processing...

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...

please explain to me how to solve this problem: Two cards are selected in sequence from a standard deck of 52 playing cards. Find the probability that the second card is a queen,...

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...

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...

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?

a. 1-∝=0.99, n=55 b.1-∝=0.90, n=55 c.1-∝=0.99, n=21 d.1-∝=0.99, n=70 e.1-∝=0.95, n=34

Project was to roll 2 dice 5 times and record sums and then repeat this 14 times and then find averages of each row so there is 15 averages.

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