8,971 Answered Questions for the topic statistics

Statistics

05/25/22

Suppose a lab is developing a robust new test to look for diabetes in children
Suppose a lab is developing a robust new test to look for diabetes in children. If a child actually has diabetes, the probability that the test will be positive is 80%, indicating they have... more
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Statistics

05/25/22

Suppose, at a local movie theater...
Suppose, at a local movie theatre, the amount of money that a man spends at the concession has an average of $17 and a standard deviation of $4.80. As well, the amount of money that a woman spends... more
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Statistics

05/25/22

probability question need help
Casey is conducting market research on the amount typically spent on the purchase of a first vehicle. Casey has determined that the average cost of a first vehicle is $7800, and that the... more
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Statistics Algebra Maths

05/25/22

Equation rearranging

Hi I would like to know now to rearrange multiple regression equation to find the value of an independent variable (x2)y= (b1x1)+(b2x2)+aany help would be most appreciated
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Statistics Hypothesis

05/25/22

statistics homework question. please help me :/
You have been asked to conduct a national study of urban home selling prices to determine if there hasbeen an increase in selling prices over time. For this purpose, you randomly selected some... more
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Statistics

05/25/22

stat stat stat stat
The duration of an inspection task is recorded in seconds. It is claimed thatthe inspection time is less than 100 seconds. (a) Test this claim at 0.05 significance level. (b) Calculate the... more
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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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