Calculus and Above

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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 standard deviation is 200lbsand the mean steer weight is 1500lbs. Find the probability that the weight of a randomly selected steer is les… read more
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The weights of newborn baby boys born at a local hospital
The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of3918 grams and a standard deviation of 422grams. If a newborn baby boy born at… read more
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In a random sample of six microwave​ ovens, the mean repair
In a random sample of six microwave​ ovens, the mean repair cost was ​$85.00 and the standard deviation was ​$11.00. Assume the population is normally distributed and use a​ t-distribution to construc… read more
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Helping my son on his Statics work. We are up all night and
Helping my son on his Statics work. We are up all night and frustrated. How does this work? … read more
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In the week before and the week after a​ holiday, there were
In the week before and the week after a​ holiday, there were 10 comma 000 total​ deaths, and 4979 of them occurred in the week before the holiday. a. Construct a 95​% confidence interval estimate of t… read more
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1. Find the indicated z score. The graph depicts the
1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. The indicated z score is? (Round to two decimal places as needed.) 2. Assume tha… read more
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Find range, variance & standard deviation for sample data
I have 6 questions and i can only post them after you answer each questions because each question is divided to multiple questions. Listed below are the top 10 annual salaries​ (in millions of​ dollar… read more
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I have a question, The weights of the fish in a certain lake
The weights of the fish in a certain lake are normally distributed with a mean of 1111 lb and a standard deviation of 66. If 44 fish are randomly​ selected, what is the probability that the mean weight will be between 8.68.6 and 14.614.6 ​lb? Round your answer to four decimal places. … read more
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Question 1 Assume that the weight loss first month
Question 1 Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform dis… 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
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Chapter 6 00. The average rent in a city is $1,570 per month
Chapter 6 00. The average rent in a city is $1,570 per month with a standard deviation of $200. Assume rent follows the normal distribution. Use the empirical rule to answer the following questions. a… read more
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"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
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Total cholesterol levels of a sample of men aged 35-44 are
A total cholesterol levels of a sample of men aged 35-44 are normally distributed with a mean of 203 milligrams per deciliter and a standard deviation of 38.3 milligrams per deciliter. a. What percent… read more
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A researcher wishes to estimate, with 95% confidence, the proportion
A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high-speed Internet access. Her estimate must be accurate within the 2% of the true proportion. a. Find the mini… read more
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Week 4 : Week 4 - Test 4 (Final Exam) Time Remaining:
Week 4 : Week 4 - Test 4 (Final Exam) Time Remaining: 1. Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the origina… read more
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Weights of airline passenger bags are normally distributed
Suppose that the weights of airline passenger bags are normally distributed with a mean of 48.26 pounds and a standard deviation of 3 pounds. 1)What is the probability that the weight of a bag will be… read more
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Find the mean for the given sample data. Unless indicated otherwise,
Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values. The students in Hugh Logan's math class to… read more
Stevewh
Stevewh
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1.Assume that the weight loss for the first month of a diet
1.Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution… read more
SusanAthena
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Master's Degree
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