Calculus and Above

Related Calculus and Above Questions
Suppose the length of time that people wait at a particular
Suppose the length of time that people wait at a particular post office has a mean of 8 minutes and a standard deviation of 4 minutes.Let X with bar on top be the average waiting time at the post offi… read more
Ann
Tutor
MSC Mathematics
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A random sample of 40 observations is to be drawn from a
A random sample of 40 observations is to be drawn from a large population of measurements. It is known that 30% of the measurements in the population are 1's, 20% of the measurements are 2's, 20% are … read more
rajeevanpillai
Master's Degree
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Random samples of size 36 each are taken from a large
Random samples of size 36 each are taken from a large population whose mean is 120 and standard deviation is 39. The standard error of the sampling distribution of sample mean is:… read more
Neo
13,864 satisfied customers
The time to complete an exam is approximately Normal with a
The time to complete an exam is approximately Normal with a mean of 47 minutes and a standard deviation of 2 minutes.The bell curve below represents the distribution for testing times. The scale on th… read more
Ashleigh T
Educator
Master's Degree
262 satisfied customers
A tablet computer model has a battery with a life span that
A tablet computer model has a battery with a life span that is normally distributed with a mean of 2.3 years and a standard deviation of 0.4 year. What is the probability that a randomly selected batt… read more
Sandhya_sharma
Master's Degree
Master's Degree
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Average, a new toy captures children's attention. He tests
average, a new toy captures children's attention. He tests 20 children selected at random and finds that their mean attention span is 34 minutes with a standard deviation of 6 minutes. If we assume th… read more
Sandhya_sharma
Master's Degree
Master's Degree
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In a random sample of 21 people the mean commute time to
In a random sample of 21 people the mean commute time to work was 30.5 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distributed to cons… read more
GLENN GILONGOS
Master of Mathematics
637 satisfied customers
1. The cashier service time at the local branch of the Rivertown
1. The cashier service time at the local branch of the Rivertown bank has an exponential distribution with a mean of 2.5 minutes. What is the probability that the service time: Is between 2 and 4 minu… read more
akch2002
Master's Degree
3,472 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
Teacher
Bachelor's Degree
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The amount of time employees at a large corporation work
The amount of time employees at a large corporation work each day are normally distributed, with a mean of 7.8 hours and a standard deviation of 0.38 hour. Random samples of 24 and 36 are drawn from t… read more
Ryan
Bachelor's Degree
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For Steve, 1. Assume the random variable x is normally
For Steve, 1. Assume the random variable x is normally distributed with mean u = 87 and sigma = . Find indicated probability. P(73… read more
Stevewh
Teacher
Bachelor's Degree
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a random sample of four microwave ovens, the mean cost was
a random sample of four microwave ovens, the mean cost was &85.00 and the standard deviation was \$13.50. The 90% confidence interval for the population mean u is (_,_) (round to two decimal places as … read more
Math-John
30 satisfied customers
please help and answer the below question: 1- An oil change shop advertised to change oil within 15 minutes. Based on the data collected on a typical day, what is the probability that the oil change w… read more
Chirag
Master's Degree
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Subject: Quantitative approach to business decision-I need
Subject: Quantitative approach to business decision-I need assistances with 25 questions (multiple choice or true/false). 2.5 hours to complete.… read more
Stevewh
Teacher
Bachelor's Degree
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A toy manufacturer wants to see how long, on average, a new
A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He 17 tests children selected at random and finds that their mean attention span is 22 minutes with a sta… read more
Ryan
Bachelor's Degree
4,665 satisfied customers
TCO 6) Horse race time is found to be normally distributed
TCO 6) Horse race time is found to be normally distributed with a mean value of 10 minutes and a standard deviation of 2 minutes. Horses whose race time is in the top 5% will not be eligible to partic… read more
Sandhya_sharma
Master's Degree
Master's Degree
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susan A finite population correction factor is needed in
susan A finite population correction factor is needed in computing the standard deviation of the sampling distribution of sample means Select one: a. whenever the sample size is more than 5% of the po… read more
SusanAthena
Master's Degree
Master's Degree
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My next question is Suppose that the probability distribution
My next question is Suppose that the probability distribution of a random variable x can be described by the formula p(x) = _x 15 for each of the values = 1, 2, 3, 4, and 5. For example, then , P(x = … read more
Ryan
Bachelor's Degree
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