Calculus and Above

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A manager of a pizza restaurant has changed the restaurant's
A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 25 minutes. A sample of… read more
Kofi
PhD in Statistics
Ph.D.
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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 69.2 inches and a standard deviation of 3.0 inches. A study participant is randomly selec… read more
Kofi
PhD in Statistics
Ph.D.
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On a standardized exam, the scores are normally distributed
On a standardized exam, the scores are normally distributed with a mean of 75 and a standard deviation of 10. Find the z-score of a person who scored 51 on the exam.… read more
Kofi
PhD in Statistics
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Mean age is 12 years, standard deviation is 4 years, what is
mean age is 12 years, standard deviation is 4 years, what is median age … read more
Kofi
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I'm a little confused on linear approximation and was
Hi! I'm a little confused on linear approximation and was wondering if you could show me the steps to solve this example.… read more
DebdattaBhattacharya
Doctoral Degree
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Find a formula in terms of k for the entries of Ak, where A
Find a formula in terms of k for the entries of Ak, where A is the diagonalizable matrix below and P−1AP=D for the matrices P and D below.… read more
Ann
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Consider the function f(x)=|x|, find the equation of a new
Consider the function f(x)=|x|, find the equation of a new function g(x) that takes the original function and shifts it down 5 and right 2? Graph the new function g(x)?… read more
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Doctoral Degree
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A professor decides to increase the class average on a
A professor decides to increase the class average on a midterm by 12 points. If the initial class average was an 82 with a standard deviation of 8, what is the new standard deviation?… read more
Scott
Master's Degree
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A sample of size will be drawn from a normal population with
A sample of size will be drawn from a normal population with mean and standard deviation . Use the TI-84 Plus calculator.(a) Is it appropriate to use the normal distribution to find probabilities for … read more
Sandhya_sharma
Master's Degree
Master's Degree
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What i have is not correct, second picture shows correct of
what i have is not correct, second picture shows correct of a different problem.in(x)/15 is not correct. Someone who knows math lab please show me how to correctly input my answers… read more
Scott
Master's Degree
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At a pet shop, an aquarium contains 9 piranhas and 6 baby
At a pet shop, an aquarium contains 9 piranhas and 6 baby sharks. Stephanie randomly selects 5 fish for her new aquarium. a. Find the probability that Stephanie gets at least 2 sharks. b. Calculate th… read more
rajeevanpillai
Master's Degree
687 satisfied customers
My question is similar to the question that you previously
Hello, my question is similar to the question that you previously answered except the number of hires, means and deviations are different numbers. Is there a charge for your assistance?… read more
Ashleigh T
Educator
Master's Degree
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Find the​ P-value for a​ left-tailed hypothesis test with a
Find the​ P-value for a​ left-tailed hypothesis test with a test statistic of z. Decide whether to reject if the level of significance is . ​P-value nothing ​(Round to four decimal places as​ needed.)… read more
Kofi
PhD in Statistics
Ph.D.
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Kofi, could you help me? The profit that the vendor makes
Hi Kofi, could you help me?The profit that the vendor makes per day by selling x pretzels is given by the function P(x)=-4x^2+2,400x-400. Find the number of pretzels that must be sold to maximize prof… read more
Kofi
PhD in Statistics
Ph.D.
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Assume that a recent survey suggests that about 95​% of
Assume that a recent survey suggests that about 95​% of computers use a new operating system… read more
Sandhya_sharma
Master's Degree
Master's Degree
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I just need the answer to questions. I have a test today
i have a test today online for statistics the topic is normal distribution … read more
Sandhya_sharma
Master's Degree
Master's Degree
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I need help with my statistic homework please. Assume that a
Assume that a sample is used to estimate a population mean μ . Find the 99.5% confidence interval for a sample of size 742 with a mean of 84.5 and a standard deviation of 9.9. Enter your answer as a tri-linear inequality accurate to 3 decimal places. < μ < … read more
Sandhya_sharma
Master's Degree
Master's Degree
5,688 satisfied customers
Looking for a statistics tutor. Need help with ten
Looking for a statistics tutor JA: I'll do all I can to help. Can you tell me more about what's going on? Customer: Need help with ten questions. JA: Is there anything else the Expert should be aware … read more
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637 satisfied customers
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