Calculus and Above

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A variable is normally distributed with: mean = 50 and
A variable is normally distributed with: mean = 50 and standard deviation = 5 . What percent of the data values lie in between 40 and 60? … read more
rajeevanpillai
rajeevanpillai
Master's Degree
Master's Degree
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Suppose a brewery has a filling machine that fills 12 ounce
Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution with a mean of and a stand… read more
Kimberley Wright
Kimberley Wright
Masters
147 satisfied customers
Suppose a brewery has a filling machine that fills 12 ounce
Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution with a mean of 1224 and a … read more
Kimberley Wright
Kimberley Wright
Masters
147 satisfied customers
Suppose a brewery has a filling machine that fills 12 ounce
Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution with a mean of 1224 and a … read more
Sandhya
Sandhya
Master's Degree
5,264 satisfied customers
Based on the following, estimate the probability that a
Based on the following, estimate the probability that a randomly selected 21- to 49-year-old consumer: Would give the phrase a rating of 5 Would give the phrase a rating of 3 or higher Is in the 21 to… read more
Brad Summers
Brad Summers
Bachelor of Education
12 satisfied customers
Im having trouble with my Statistics Homework. This is the
This is the question-The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $6.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 52 customers, answer the following questions: How large of a sample is required?How large of a sample would be necessary if no estimate were available for the proportion supporting current policy? … read more
Sandhya
Sandhya
Master's Degree
5,264 satisfied customers
According to a report by the US Fish and Wildlife Service,
According to a report by the US Fish and Wildlife Service, the mean length of six-year-old rainbow trout in the Arolic River in Alaska is 481 millimeters with a standard deviation of 41 millimeters. A… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
Question 2.2. Which of the following distributions is most
Question 2.2. Which of the following distributions is most likely to approach a normal distribution? (Points : 1) distribution of all possible sample means of sample size 90 distribution of all possib… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
Erica's Bottled Water Company makes bottled water. Well, they
Erica's Bottled Water Company makes bottled water. Well, they don't make it; they just pour tap water into plastic bottles. Suppose the 20-ounce bottles of Erica's Bottled Water are filled by an autom… read more
Sandhya
Sandhya
Master's Degree
5,264 satisfied customers
Question 1 of 20 5.0 Points The lifetimes of light bulbs of
Question 1 of 20 5.0 Points The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of 11 hours. What percentage of the bulbs has l… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
This questions are to be forwarded to Ryan. He ask me to say
This questions are to be forwarded to Ryan. He ask me to say that. A random sample of 16 airline passengers at a large airport showed that the mean time spent waiting in line to check in at the ticket… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
2. The mean diameter of a ball bearing produced by a certain
2. The mean diameter of a ball bearing produced by a certain manufacturer is 0.80 cm with a population standard deviation of 0.03 cm. A sample of 36 ball bearings is randomly selected from a productio… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
1. Assume the fill amount of bottles of a soft drink is normally
1. Assume the fill amount of bottles of a soft drink is normally distributed with a mean of 2.0 liters and standard deviation of 0.04 liter. If we take random samples of 14 bottles, what is the standa… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
"For Guru2009 only" 1. A random sample of fifty-five 200-meter
"For Guru2009 only" 1. A random sample of fifty-five 200-meter swims has a mean time of 3.98 minutes and a standard deviation of 0.06 minutes. Construct a 905 confidence interval for the population me… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
1.The lifetime of a particular component is normally distributed
1. The lifetime of a particular component is normally distributed with a mean of 1,000 hours anda standard deviation of 100 hours. Make the following calculations: a.) If a random sample of 9 componen… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
20.A filling machine in a brewery is designed to fill bottles
20. A filling machine in a brewery is designed to fill bottles with 355 ml of hard cider. In practice, however, volumes vary slightly from bottle to bottle. The brewer suspects that the filling machin… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
102 satisfied customers
1. If Z is a standard normal variable, what is the probability
1. If Z is a standard normal variable, what is the probability that Z lies between -0.55 and 0.55? (Points : 7) 0.9000 0.4176 -0.9000 -0.4176 2. If Z is a standard normal variable, what is the probabi… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
Another question? 1)A soft drinking filling machine is set
Another question? 1)A soft drinking filling machine is set up to fill bottles with 12 ounces of soft drink. The standard deviator s is known to be 0.4 ounces. The quality control department periodical… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
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