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Statistics

03/09/23

What is the test statistic

Samples were collected from two ponds in the Bahamas to compare salinity values (in parts per thousand). Several samples were drawn at each site.Pond 1: 37.01, 37.02, 37.03, 37.71, 37.32, 37.36,... more

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Statistics Probability

03/09/23

The weight (in pounds) and height (in inches) for a child were measured every few months over a two-year period. The results are displayed in the scatterplot

The weight (in pounds) and height (in inches) for a child were measured every few months over a two-year period. The results are displayed in the scatterplotThe equation ŷ = 17.4 + 0.5x is called... more

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Statistics

03/09/23

population variance can you give me a hint how to do this, have a clue but not sure.

Approximate the population variance and standard deviation given the following frequency distribution:Class Frequency ... more

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Statistics

03/08/23

two balls are randomly selected with replacement from a jar that contains seven red and three white balls. The number x of red balls is recorded.

If the experiment is binomial, give the values of n and p. (If the experiment is not binomial enter NONE.)

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Statistics

03/08/23

. Two balls are randomly selected with replacement from a jar that contains seven red and three white balls. The number x of red balls is recorded.

If the experiment is binomial, give the values of n and p. (If the experiment is not binomial enter NONE.)n=2

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Statistics

03/08/23

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SAT score of first year students at your college. If you would like to... more

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Statistics

03/08/23

A population of values has a normal distribution with

A population of values has a normal distribution with μ=101.5 and σ=55.1 You intend to draw a random sample of size n=92a) What is the mean of the distribution of sample means?μ¯x=b) What is the... more

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Statistics Probability

03/08/23

statistics probability

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 62 ounces and a standard deviation of 7 ounces.Use the Empirical... more

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Statistics

03/07/23

upper and lower limits

Given the following data that was sampled from a normal population distribution: 86 83 86 95 75 94 116 100 85 Determine a 90% confidence interval for the population mean. (use 1 decimal... more

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Statistics

03/07/23

Normal distribution

Given a normal distribution with 𝜎 = 1.890. Find the required sample size for a 90% confidence level (estimating the mean) with a 1.08 margin-of-error.

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Statistics

03/07/23

Normal distribution

Given a normal distribution with 𝜎 = 0.340. Find the required sample size for a 99% confidence level (estimating the mean) with a 0.14 margin-of-error.

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Statistics

03/07/23

Stats - MATH 2510-581

Is it A,B,C,orDThe expected value of a random variable can never be negative.A.The statement is false. The expected value of a random variable can be negative.B.The statement is false. The expected... more

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Statistics Probability

03/07/23

Which of the following would linearize the data for volume and time?

Water is poured into a large, cone-shaped cistern. The volume of water, measured in cm3, is reported at different time intervals, measured in seconds. The scatterplot of volume versus time showed a... more

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Statistics

03/05/23

Standard deviation

You measure 48 watermelons' weights, and find they have a mean weight of 76 ounces. Assume the population standard deviation is 7.1 ounces. Based on this, what is the margin of error associated... more

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Statistics

03/05/23

Standard deviation

You measure 47 watermelons' weights, and find they have a mean weight of 71 ounces. Assume the population standard deviation is 11.2 ounces. Based on this, what is the margin of error associated... more

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Statistics Probability

03/05/23

Please help thank you!! Standard Deviation

In a neighborhood donut shop, one type of donut has 410 calories, six types of donuts have 520 calories, five types of donuts have 340 calories, three types of donuts have 500 calories, and six... more

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Statistics

03/05/23

A manufacturing machine has a 2% defect rate. if 3 items are chosen at random what is the probability that at least one will have a defect?

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Statistics Math Business Probability

03/05/23

Basic Business Statistics Concepts and Applications 14th Editon by Mark Berenson, David Levine, Kathrlyn Szabat, David Stephan (Textbook Question)

problem 14.8) Nassau County is located approximately 25 miles east of New York City. The data organized and stored in GlenCove include the fair market value (in $thousands), land area of the... more

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Statistics Calculus Geometry Precalculus

03/05/23

Closing the gap between graphs

I want to raise the lower graph g(x) toward the upper graph f(x) to make the points of the lower graph as close as possible to those of the upper graph, in other words, to make the graphs "match"... more

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Statistics

03/05/23

Case Study #5: Home / Continuous Distributions

The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $12. Find the probabilities listed below for this normal distribution. Find... more

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Statistics

03/05/23

statistics annual

15,000 18,000 20,000 25,000 1,025000 Compute the mean annual income.Compute the median annual income.Which provides a more appropriate description of the Smiths’ financial position, the mean or... more

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Statistics

03/04/23

A distribution of values is normal with a mean of 176.6 and a standard deviation of 23.5. Find P61, which is the score separating the bottom 61% from the top 39%. P61 =

A distribution of values is normal with a mean of 176.6 and a standard deviation of 23.5.Find P61, which is the score separating the bottom 61% from the top 39%.P61 =

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Statistics Probability

03/04/23

Determine whether the distribution represents a probability distribution, explain your answer

X 1 2 3 5P(×) ¼ ⅛ ¼ ⅛

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Statistics

03/04/23

Assume that adults have IQ scores that are normally distributed with a mean of 101.9 and a standard deviation 21.5

Assume that adults have IQ scores that are normally distributed with a mean of 101.9 and a standard deviation 21.5Find the first quartile Upper Q 1Q1, which is the IQ score separating the... more

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Statistics

03/03/23

any help is appreciated

Let X be the number of goal chances that result in ' goals for a football team during n goal chances. In the course of many matches, the team scores on 20% of the chances. a)Explain why it might be... more

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What is the test statistic

The weight (in pounds) and height (in inches) for a child were measured every few months over a two-year period. The results are displayed in the scatterplot

population variance can you give me a hint how to do this, have a clue but not sure.

two balls are randomly selected with replacement from a jar that contains seven red and three white balls. The number x of red balls is recorded.

. Two balls are randomly selected with replacement from a jar that contains seven red and three white balls. The number x of red balls is recorded.

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

A population of values has a normal distribution with

statistics probability

upper and lower limits

Normal distribution

Normal distribution

Stats - MATH 2510-581

Which of the following would linearize the data for volume and time?

Standard deviation

Standard deviation

Please help thank you!! Standard Deviation

A manufacturing machine has a 2% defect rate. if 3 items are chosen at random what is the probability that at least one will have a defect?

Basic Business Statistics Concepts and Applications 14th Editon by Mark Berenson, David Levine, Kathrlyn Szabat, David Stephan (Textbook Question)

Closing the gap between graphs

Case Study #5: Home / Continuous Distributions

statistics annual

A distribution of values is normal with a mean of 176.6 and a standard deviation of 23.5. Find P61, which is the score separating the bottom 61% from the top 39%. P61 =

Determine whether the distribution represents a probability distribution, explain your answer

Assume that adults have IQ scores that are normally distributed with a mean of 101.9 and a standard deviation 21.5

any help is appreciated

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