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... more
Statistics Math Mathematics Problem

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 Math Mathematics Problem

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... more

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)... more

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... more
Statistics Math Probability Maths

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)... more

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... more

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... more
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... more
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... more
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,... more
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... more
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... more
Statistics Homework Help In Stats

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... more
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)... more
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... more
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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