8,956 Answered Questions for the topic statistics
03/16/22
A random sample of size 50 is taken from a large population with mean μ=160 and standard deviation σ=18.
A random sample of size 50 is taken from a large population with mean μ=160 and standard deviation σ=18. What is the mean of the sampling distribution of the sample means? What is the standard...
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Statistics
03/16/22
can you please help me
A bag contains 5 gold marbles, 7 silver marbles, and 29 black marbles. The rules of the game are as follows: You randomly select one marble from the bag. If it is gold, you win $4, if it is silver,...
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Statistics
03/16/22
can you help me solve this
A poll is given, showing 35% are in favor of a new building project.If 9 people are chosen at random, what is the probability that at least 5 of them favor the new building project? Probability...
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Statistics
03/16/22
can you help me solve this
Suppose that about 77% of graduating students attend their graduation. A group of 33 students is randomly chosen, and let X be the number of students who attended their graduation.
What is the...
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Statistics
03/16/22
can you help me solve this
A poll is given, showing 80% are in favor of a new building project.If 7 people are chosen at random, what is the probability that fewer than 5 of them favor the new building project? Probability...
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Statistics
03/16/22
can you help me solve this
Assume Binomial Distribution with n = 10 and p = 0.6. Please show your answers to 4 decimal places.P(X == 4) = P(X ≤≤ 4) = P(X << 4) = P(X >> 4) = P(X ≥≥ 4) =
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Statistics
03/16/22
can you please help me solve this
If a seed is planted, it has a 46% chance of growing into a healthy plant. Let X be the number of seeds grow into healthy plants when 62 seeds are planted.
What is the distribution of X? X...
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Statistics
03/16/22
I need help to answer this problem
A company prices its tornado insurance using the following assumptions:• In any calendar year, there can be at most one tornado. • In any calendar year, the probability of a tornado is 0.04. • The...
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Statistics
03/15/22
Normal Distribution
A sample of size 36 is drawn from a population with mean 47 and standard deviation of 9. Find P (X ≤ 47.9)
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Statistics
03/15/22
If I add up all the marbles it equals to 23 marbles. What am I doing wrong ?
A bag contains 9 red marbles, 5 white marbles, and 9 blue marbles. You draw 4 marbles out at random, without replacement. Give all answers as a decimal rounded to four places.
Statistics Probability
03/15/22
A distribution of values is normal with a mean of 116.7 and a standard deviation of 73.3
Find P68, which is the score separating the bottom 68% from the top 32%.Find P68=_______________________Enter your answer as a number accurate to 1 decimal place. Answers obtained using...
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03/15/22
What are the Objective Function and Constraints for this problem?
A producer has three products, A, B, and C, which are composed from many of the same raw materials and subassemblies by the same skilled workforce. Each unit of product A uses 15 units of Raw...
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Statistics
03/14/22
A certain flight arrives on time 81 % of the time. Suppose 148 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that….
A certain flight arrives on time 81 % of the time. Suppose 148 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 108...
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03/14/22
statistical comparisons of frog jumps using morphometric measurements vs jump length
Is there a useful formula for using length and width measurements from frogs combined with their mass to obtain a single numerical value to use for statistical analysis against jump length? I was...
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Statistics
03/14/22
A food distribution company has employees that order food supplies for local restaurants by predicting sales.
A food distribution company has employees that order food supplies for local restaurants by predicting sales. The company pulls an SRS of 500 orders and finds that 408 orders were correct....
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Statistics
03/14/22
A team of eye surgeons has developed a new technique for risky eye operations to restore the sight of people that have a certain disease
A team of eye surgeons has developed a new technique for risky eye operations to restore the sight of people that have a certain disease, An SRS of 100 patients who have had the surgery revealed...
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Statistics
03/14/22
Normal Distribution
Company XYZ know that replacement times for the quartz time pieces it produces are normally distributed with a mean of 10.9 years and a standard deviation of 2.4 years.If the company wants to...
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Statistics Probability
03/13/22
ratio and probability question
Imagine you are the coach for a co-ed softball championship game. There are two players on base and two outs. You are about to name a pinch hitter among three players. Maggie has gotten hits 4 out...
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Statistics Probability
03/13/22
ratio and probability question
Imagine you are the coach for a co-ed softball championship game. There are two players on base and two outs. You are about to name a pinch hitter among three players. Maggie has gotten hits 4 out...
more
03/13/22
A random sample of size 50 is taken from a large population with mean μ=160 and standard deviation σ=18.
A random sample of size 50 is taken from a large population with mean μ=160 and standard deviation σ=18. What is the mean of the sampling distribution of the sample means? What is the standard...
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03/12/22
Answer the following below using binomial distribution.
According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly...
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03/12/22
A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?
A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?a.0.89b.1.29c.3.90d.2.20
03/12/22
A population consist of five (5) measurements 2,3,5,6 and 7.How many different samples of size n=2 can be drawn from the population?
A population consist of five (5) measurements 2,3,5,6 and 7.How many different samples of size n=2 can be drawn from the population?a.7b.8c.9d.10
03/12/22
What is the mean of a sampling distribution of sample means if a population has a mean of 8.5?
1.What is the mean of a sampling distribution of sample means if a population has a mean of 8.5?2.What is the mean of a population if the mean of the sampling distribution of sample means is...
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