8,958 Answered Questions for the topic statistics

05/23/22

Mr. Santos, a garment store owner, claimed that the brand of sweatpants his customers prefer is Brand A compared to Brand B. He conducted a survey of 100 customers.
Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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Statistics Calculus

05/23/22

As Tutor on Wyzant , I want to ask one Question

I submitted sessions on wyzant. The student left 5 star rating and good feedback.After that he removed his Payment on file. Now he has no payment on file.Wyzant will pay me as per schedule after... more
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Statistics

05/23/22

Six sigma Question help
Which of the following is NOT a measure of process capability?DPMOSigma ValueZ benchRange
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Statistics Math Mathematics Problem

05/22/22

How many wins would a team need to win in a best of 28 game series?

How many wins would a team need to win in a best of 28 game series?
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Statistics Math Mathematics Problem

05/22/22

How many wins would a team need to win in a best of 28 game series?

How many wins would a team need to win in a best of 28 game series?
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Statistics

05/21/22

probability question
Bag A contains 7 blue and 3 red marbles. Bag B contains 6 blue and 4 red marbles.Firstly, a marble is chosen at random from Bag A and and placed in Bag B. Secondly, a marble is chosen at random... more
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05/21/22

 Mr. Santos, a garment store owner, claimed that the brand of sweatpants his customers prefer is Brand A compared to Brand B. He conducted a survey of 100 customers.

Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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05/21/22

Answer the following questions.
A certain "Plantita" wants to test whether some plant species are more salt-tolerant than others. Some key variables she might measure are the following: the amount of salt she must add to the... more
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Statistics Math Probability Maths

05/20/22

(a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d) draw a conclusion.
Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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05/20/22

Construct a scatter plot and identify the trend of data as to form, direction and trend.

Application (Performance Task)Construct a scatter plot on the problems below and identify the trend of the data as to form, direction and trend.1. A doctor collected data on how many hours children... more
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05/19/22

Solve the following.

Compute the value of the test statistic for each test using the given information.1. Testing Ho: p = 0.48 vs Ha: p <0.48 at a = 0.10, n = 540, p = 0.582. Testing Ho: p = 0.94 vs Ha: p > 0.94... more
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Statistics Math

05/19/22

The coast guard is expecting grow to over 24,000 members by this year. What is the null and alternative hypothesis?
This was dropped on us by out stats teacher, and I think I know the answer, but I'd just like to make sure
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Statistics

05/18/22

How do I calculate probability?
basketball player makes a foul shot 80% of the time what is the, probability that he will make 12 in a row
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Statistics

05/18/22

Determining sample size

Find The minimum sample size needed to estimate the proportion of voters favoring a candidate if we want our estimate to be within 3.2% as the margin of error and a confidence level of 90%. A... more
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Statistics Probability

05/18/22

Indicated probability

A building has 3 parking stalls in front. Find the different number of ways that two different cars can park in the stall.
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Statistics Probability

05/18/22

Indicated probability

Two dice are rolled. What is the probability that the sum of the two numbers on the dice will be three
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Statistics

05/18/22

Inferential Statistics
A vote is to be taken among the residents of a town and the surrounding county to determine whether a proposed chemical plant should be constructed. The construction site is within the town limits,... more
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Statistics Math

05/18/22

Statistics problem
Each person has a 75% probability of going to the Ches Tahoe restaurant. a. You randomly select 8 people. What is the probability that 5 people will not go to the restaurant? b. You randomly select... more
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Statistics Math Probability Maths

05/17/22

(a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d) draw a conclusion.
Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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Statistics

05/17/22

Confidence interval

Newsweek performed a poll in which 500 American parents were asked the question, “Would you prefer to have your child taught by a male or female for grades K-2?” Only 40% responded that they would... more
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Statistics

05/17/22

Teachers’ Salaries in North Dakota The average teacher's salary in North Dakota is 35441 . a normal distribution with 5100 . Round final answers to at least decimal 4 places

assume normal distribution is 5100
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Statistics Homework Help In Stats

05/16/22

b. What percentage of all possible observations of the variable are at most 12​?
Assume that the variable under consideration has a density curve. The area under the density curve that lies to the right of 12 is 0.371. a. What percentage of all possible observations of the... more
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Statistics

05/16/22

Find the 95% confidence interval for estimating the population mean μ If sample mean X = 50, sample size n= 60 and population standard deviation σ is known to be 10.
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Statistics

05/16/22

Assume that the IQ scores have a normal distribution with mean 100 and standard deviation of 8
Assume that the IQ scores have a normal distribution with mean 100 and standard deviation of 8. Determine the probability that the IQ scores of a randomly selected person is: a) Less than 106 b)... more
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Statistics Data Science

05/16/22

Consider a p-dimensional hypercube, What is the probability of the event...
Considering a p-dimensional hypercube H_1^p = [-1,1]^p.Assume we draw two p-dimensional points, a = (a_1, a_2, ..., a_p) and b = (b_1, b_2, ..., b_p) uniformly at random from this hypercube.Denote... more
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