Calculus and Above

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The amounts a soft drink machine is designed to dispense for
The amounts a soft drink machine is designed to dispense for each drink are normally​ distributed, with a mean of 12.2 fluid ounces and a standard deviation of 0.2 fluid ounce. A drink is randomly sel… read more
MunishK
Assistant Professor
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A soft drink machine outputs a mean of 28 ounces per cup.
A soft drink machine outputs a mean of 28 ounces per cup. The machine's outpu8t is normally distributed with a standard deviation of 2 ounces. What is the probability of filling a cup between 24 and 2… read more
Sandhya
Master's Degree
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In a recent study on world​ happiness, participants were
In a recent study on world​ happiness, participants were asked to evaluate their current lives on a scale from 0 to​ 10, where 0 represents the worst possible life and 10 represents the best possible … read more
Kofi
Ph.D.
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In a recent study on world​ happiness, participants were
In a recent study on world​ happiness, participants were asked to evaluate their current lives on a scale from 0 to​ 10, where 0 represents the worst possible life and 10 represents the best possible … read more
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A soft drink machine outputs a mean of 23 ounces per cup.
A soft drink machine outputs a mean of 23 ounces per cup. The machine's output is normally distributed with a standard deviation of 3 ounces. What is the probability of filling a cup between 25 and 26… read more
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Ph.D.
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According to a survey in a​ country, 38​% of adults do not
According to a survey in a​ country, 38​% of adults do not own a credit card. Suppose a simple random sample of 600 adults is obtained. Complete parts​ (a) through​ (d) below. ​(a) Describe the sampli… read more
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According to a survey in a​ country, 17​% of adults do not
Neo
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Exit polling is a popular technique used to determine the
Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. Suppose a referendum to increase funding for education is on the ballot in a large town… read more
Neo
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According to a​ study, 73​% of all males between the ages of
According to a​ study, 73​% of all males between the ages of 18 and 24 live at home. ​ (Unmarried college students living in a dorm are counted as living at​ home.) Suppose that a survey is administer… read more
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The mean incubation time for a type of fertilized egg kept
The mean incubation time for a type of fertilized egg kept at a certain temperature is 18 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 … read more
rajeevanpillai
Master's Degree
Master's Degree
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Suppose a simple random sample of size nequals150 is
Suppose a simple random sample of size nequals150 is obtained from a population whose size is Upper N equals 10 comma 000 and whose population proportion with a specified characteristic is p equals 0.… read more
Sandhya
Master's Degree
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A soft drink company has recently received customer
A soft drink company has recently received customer complaints about its one-liter-sized soft drink products. Customers have been claiming that the one-liter-sized products contain less than one liter… read more
Tom
Master's Degree
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In a recent​ year, about 36​% of all infants born in a
In a recent​ year, about 36​% of all infants born in a country were conceived through​ in-vitro fertilization​ (IVF). Of the IVF​ deliveries, about ​twenty-four percent resulted in multiple births. ​(… read more
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Bachelor's Degree
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A soft drink company has recently received customer
A soft drink company has recently received customer complaints about its one-liter-sized soft drink products. Customers have been claiming that the one-liter-sized products contain less than one liter… read more
Kimberley Wright
Masters
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The weights of steers in a herd are distributed normally.
The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 900lbs. Find the probability that the weight of a randomly selected steer is less than 110… read more
Sandhya
Master's Degree
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The diameters of ball bearings are distributed normally. The
The diameters of ball bearings are distributed normally. The mean diameter is131 millimeters and the standard deviation is3 millimeters. Find the probability that the diameter of a selected bearing is… read more
R.R. Jha
Bachelor's Degree
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In a survey of a group of​ men, the heights in the​ 20-29
In a survey of a group of​ men, the heights in the​ 20-29 age group were normally​ distributed, with a mean of 69.3 and a standard deviation of 3.0 inches. A study participant is randomly selected. Co… read more
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Find the standardized variable Z if X has Mean 48 and standard
Find the standardized variable Z if X has Mean 48 and standard deviation 9. Your answer: Z = (X - ) / Open Show Work Find the standardized variable Z if X has Mean 157 and variance 36. Your answer: Z … read more
Stevewh
Teacher
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