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 Introductory statistics
 The central limit theorem
 Using the central limit theorem

Card 22 / 31:
Men have an average weight of 172 pounds with a standard deviation of 29 pounds.
Find the probability that 20 randomly selected men will have a sum weight greater than 3600 lbs.If 20 men have a sum weight greater than 3500 lbs, then their total weight exceeds the safety limits for water taxis. Based on (a), is this a safety concern? Explain.

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Questions & Answers
Let x1, x2, ...,xn be a random sample of size n from N(0,σ
), show that there exists an UMP test
with significance level α for testing H0
:
2 =
2 against H1
:
2 <
2 . If n=15, = 0.05,
and
2= 3, determine the BCR
3xy^2√[x^3y^2/(12(x^3y)^2)]
what is probability
Esther
what is probability
Esther
what is probability
Esther
Probability is a branch of mathematics that deals with the occurrence of a random event. For example, when a coin is tossed in the air, the possible outcomes are Head and Tail.
Dewan
mean 0 and standard deviation 1 .using area table find P(X>3)
define the types of data?
Mohsin
define the number of classes?
Mohsin
define the class limt?
Mohsin
define the class frequency and class interval ?
Mohsin
define class boundaries
George
Your home address
nominal
Interval
ratio
ordinal
MD
home address is nominal
Awel
what is axioms of probability
characteristics of statistic
a measure of cntral tendency is a quantitative value that tends to locate in some sense the middle of a set of data
in a large metropolitan area
a lecturer claims that his students score an average of 55 marks in their statistics test. the object supervisor wants to know wether the lecturer's claims is acceptable or not.what is the posible tail of the test?
Karen
the best sampling method for A school has a total of 100 teachers. Each teacher in the school is given a number and then a random sample of 35 teachers is obtained.
what the best sampling method for A school has a total of 100 teachers. Each teacher in the school is given a number and then a random sample of 35 teachers is obtained.
Nurhaznissah
any one send me the notes of these chpt if possible introduction to statistics measure of centeral tendency or average measure of dispensation moments and skewness presentation of data
Kindly send me these notes.
Naheed
what is a regression, and what is it primarily used for
assume the sample populations do not have equal standard deviations and use the 0.05 significance level
what is the solution to this question?
The controls that are usually used are
the controls that are usually used in quality controls and also controls a process is key tool used in run chat, control chat and design of experiment etc.,
Sravanthi
mean is number that occurs frequently in a giving data
That places the mode and the mean as the same thing. I'd define the mean as the ratio of the total sum of variables to the variable count, and it assigns the variables a similar value across the board.
Samsicker
Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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