6,833 Answered Questions for the topic statistics

Statistics Calculus

2d

#### 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...
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4d

#### 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?

4d

#### 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?

Statistics

4d

#### 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...
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5d

#### 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)...
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5d

#### 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...
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6d

#### (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)...
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6d

#### 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...
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7d

#### 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...
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Statistics Math

7d

#### 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

Statistics

7d

#### 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

Statistics

7d

#### 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...
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Statistics Probability

7d

#### 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.

Statistics Probability

7d

#### Indicated probability

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

Statistics

7d

#### can you help me with this assignment?

Let X1,X2,... be independent iid s.v. and asume that P(X_1=1) = 1-P(X_1=0) = p in (0,1) Let Y be given by Y = inf{n in N : X_n=1} so that Y=n, where n in N, if and only if X_1=...=X_n-1=0 while...
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Statistics

8d

#### 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,...
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Statistics Math

8d

#### 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...
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Statistics

9d

#### 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...
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Statistics

9d

#### 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

9d

#### 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...
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Statistics

9d

#### 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)...
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Statistics

10d

#### Statistics - Expected Value

A process for producing an industrial chemical yields a product containing two types of impurities.For a specified sample from this process, let Y1 denote the proportion of impurities in the sample...
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Statistics

12d

#### What is the probability of rolling a five with two dice?

What is the probability of rolling a five with two dice?

Statistics

14d

#### What is the normal continuity correction for the discrete probability P(3<x<9)?

What is the normal continuity correction for the discrete probability P(3<x<9)?

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