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Statistics

04/11/23

The lengths of professor's classes have continuous uniform distribution between 50 min and 54 min. If one class is randomly selected, find probability the class length between 51.5 and 53.1 min

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Statistics

04/11/23

statistic college freshman level

A Financial Analyst wishes to estimate the mean expected annual sales (millions of dollars) of anew product. The estimated sales for the new product Xi (millions of dollars) and the probability... more

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Statistics Math Biology Calculus

04/11/23

Static Equilibrium

Please help to answer the following question - A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 300 N and is 4.50 m long. What is the tension... more

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Statistics Math Biology Calculus

04/11/23

Collisions in Real Life

Please help me answer the following question, please provide steps, and work. Question: In the movie, The Matrix Reloaded, Neo (80 kg) jumps toward Agent Smith (600 kg) who jumps towards Neo. When... more

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Statistics

04/10/23

State the poll question, the sample size n, and the margin of error (also known as sampling error or MoE) for the data.

When the results of a survey or poll are published, the sample size and the margin of error should both be given. For example: 1,000 voters were surveyed, and 39% ± 2% of the voters agree with the... more

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Statistics

04/10/23

Statistics and analysis

Hello, I am looking for someone to edit and review my statistics paper online.

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Statistics

04/10/23

What is normal, when it comes to people's body temperatures?

A random sample of 550 human body temperatures had a mean of 98.35° and a standard deviation of 0.72°. (a) Construct a 99% confidence interval for the average body temperature of healthy people.

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Statistics

04/10/23

find the confidence interval

In addition to teachers and administrative staff, schools also have many other employees, including bus drivers, custodians, and cafeteria workers. In Auburn, WA, the average hourly wage is $24.98... more

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Statistics

04/10/23

Find the necessary confidence interval for a population mean 𝜇 for the following values. (Round your answers to two decimal places.) 𝛼 = 0.01, n = 32, x = 31, s2 = 16

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Statistics

04/10/23

systistics question

Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.478.47 and a standard deviation of 1.51.5. Using the empirical rule, what percentage of American women... more

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Statistics Probability

04/09/23

A political candidate has asked you to conduct a poll to determine what percentage of people support her.

A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 7% margin of error at a 95% confidence level, what size of... more

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Statistics Probability

04/09/23

Confidence interval

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 12 16 20 48 Female 3 19 10 32 Total 15 35 30 80 Let π� represent the percentage of all male... more

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Statistics Probability

04/09/23

Estimating Population Proportion

Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 362 with 14.9% successes at a confidence level of... more

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Statistics Probability

04/08/23

Suppose there's a company that's making ID badges for its employees.

Suppose there's a company that's making ID badges for its employees. IDs are made up of one vowel (A, E, I, O, U) and three numbers (0,1,2,3,4,5,6,7,8,9). Note use Permutations and... more

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Statistics Probability

04/08/23

Suppose there's a company that's making ID badges for its employees.

Suppose there's a company that's making ID badges for its employees. IDs are made up of one vowel (A, E, I, O, U) and three numbers (0,1,2,3,4,5,6,7,8,9) what's the total number of badges that can... more

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Statistics Probability

04/08/23

Suppose there's a company that's making ID badges for its employees

Suppose there's a company that's making ID badges for its employees. IDs are made up of one vowel (A, E, I, O, U) and three numbers (0,1,2,3,4,5,6,7,8,9) what's the total number of badges that can... more

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Statistics Probability

04/07/23

Suppose there's a company that's making ID badges

Suppose there's a company that's making ID badges for its employees. IDs are made up of one vowel (A, E, I, O, U) and three numbers (0,1,2,3,4,5,6,7,8,9) what's the total number of badges that can... more

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Statistics Probability

04/07/23

Three machines A, B, and C—are used to produce a large quantity of identical parts at a factory.

Three machines A, B, and C—are used to produce a large quantity of identical parts at a factory. Machine A produces 60% of the parts, while Machines B and C produce 30% and 10% of the parts,... more

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Statistics

04/07/23

Bayesian Theory

Approximately 1 percent of Americans ages 50-60 have lung cancer. A patient with lung cancer has a 93 percent chance of a positive test. A patient without lung cancer has a 6 percent chance of a... more

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Statistics Probability

04/07/23

consider that events A, B, and C are mutually exclusive. Are these probabilities possible: P(A) = 0.5, P(B) = 0.4, P(C) = 0.2? Why?

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Statistics Probability

04/07/23

why is that P(A union B) is not always P(A) + P(B)?

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Statistics Probability

04/07/23

what's the difference between permutations of subsets and combinations?

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Statistics Probability

04/07/23

Suppose there's a company that's making ID badges for its employees. IDs are made up of one vowel (A, E, I, O, U) and three numbers (0,1,2,3,4,5,6,7,8,9)

what's the total number of badges that can be created? what's the total number of badges that can be created without repeating a number?

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Statistics

04/07/23

Inferential Statistics

How is a t-test for correlated groups and the t-test for single samples alike and different? Is there a current example of this?

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Statistics

04/06/23

stats question fuel efficiency

Suppose that fuel efficiency for a particular model car under specified conditions is normally distributed with a mean value of 29.0 mpg and a standard deviation of 1.25 mpg. Let y = the fuel... more

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The lengths of professor's classes have continuous uniform distribution between 50 min and 54 min. If one class is randomly selected, find probability the class length between 51.5 and 53.1 min

statistic college freshman level

Static Equilibrium

Collisions in Real Life

State the poll question, the sample size n, and the margin of error (also known as sampling error or MoE) for the data.

Statistics and analysis

What is normal, when it comes to people's body temperatures?

find the confidence interval

Find the necessary confidence interval for a population mean 𝜇 for the following values. (Round your answers to two decimal places.) 𝛼 = 0.01, n = 32, x = 31, s2 = 16

systistics question

A political candidate has asked you to conduct a poll to determine what percentage of people support her.

Confidence interval

Estimating Population Proportion

Suppose there's a company that's making ID badges for its employees.

Suppose there's a company that's making ID badges for its employees.

Suppose there's a company that's making ID badges for its employees

Suppose there's a company that's making ID badges

Three machines A, B, and C—are used to produce a large quantity of identical parts at a factory.

Bayesian Theory

consider that events A, B, and C are mutually exclusive. Are these probabilities possible: P(A) = 0.5, P(B) = 0.4, P(C) = 0.2? Why?

why is that P(A union B) is not always P(A) + P(B)?

what's the difference between permutations of subsets and combinations?

Suppose there's a company that's making ID badges for its employees. IDs are made up of one vowel (A, E, I, O, U) and three numbers (0,1,2,3,4,5,6,7,8,9)

Inferential Statistics

stats question fuel efficiency

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