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
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...
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
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
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...
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)?
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.