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# STA301 Statistics and Probability , Quizz no:4 of Feb 25, 2014 11:59 PM

plz share ur quizz

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Please all students related this subject Share your online Quizzes here to help each other.thanks

Please share the question and their answers of this quiz if anyone has done.
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share the last quiz over here to help others

i thnk PDA formation he FA ki use krty hn is liye ye effectv hoty hn CFG sy? m i right???

ye to cs402 ki gdb ka q hai!

sory mjy yad nae tha k mn ny GDB ka group khola hy ya STA301 ka :( :( dimagh khrab kr dea VU ny :( :(

solved

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Thx TM\$ n Fatin broz

plz correct which are not sure

The t-distribution can never become narrower than:
Select correct option:
F-distribution
standard normal distribution  (sure)
Chi-square distribution
exponential distribution

When sampling is from an infinite population, the mean and standard error of the sampling distribution of p^ are ________ and________, respectively:
Select correct option:
p, sqrt [p(1 - p)/n]    (sure)
p^, p(1 - p) / n
p, n(1 - p)p
p, p(1 - p)

The standard error of the sampling distribution of the sample mean when sampling is done with replacement is equal to:
Select correct option:
sigma
s / n
sigma /sqrt( n)  (sure)
s / (n - 1)

In a Poisson distribution, Maximum Likelihood Estimator (MLE) for meu (u) is equal to:
Select correct option:
Sample mean   (sure)
Reciprocal of the mean
Sample variance
Reciprocal of the sample variance

The precision of an estimator can be increased by increasing the;
Select correct option:
Number of parameters
Number of estimators
Size of population
Size of sample   (sure)

t-distribution can be used to find the confidence interval for:
Select correct option:
Population variance  (SURE)
Population mean
Difference between population proportions
Populating proportion

By increasing sample size, ________ can be decreased:
Select correct option:
Alpha
Beta  (sure)
Both Alpha and Beta
None of these

Sample Proportion is a /an_______ estimator of population mean.
Select correct option:
Unbiased (sure)
Consistent
Unbiased and Consistent estimator
None of these

Accept H0/H0 is false, is the ________.
Select correct option:
Correct decision
Type II error  (Sure)
Type I error
None of the above

The critical region is computed from the value of:
Select correct option:
Alpha
Beta
1-alpha
1-Beta

is se sirf ye pta chly ga quiz kahn se thy kesy thy ,

1- When we start hypothesis testing, we always assume that:

2- mean1 - mean2 = 10 against H1 : mean1 - mean2 < 10 then rejection region w

3- As the sample size _____________ the variation of the sampling distribution of the same means ______________:

4- Sampling distributions are

5- f Var(mean1) < Var(mean2) it implies:

6- In a t-distribution

7- If a significance level of 5% is used rather than 1%, the null hypothesis is:

8- sampling distribution of the mean with a normal distribution

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