Hypothesis Significance Testing

Statistics
Tutor: None Selected Time limit: 1 Day

4.  A statistician for the Acme Corporation carries out a test of significance in order to

determine whether a new advertising campaign has increased mean daily sales.  Which of the following conclusions is NOT consistent with the other three?

 

a) We conclude that the advertising campaign was ineffective.

b) We find strong evidence against the null hypothesis.

c) The results are statistically significant.

d) The P-value is small.       

 

Apr 29th, 2015
A statistical hypothesis is a scientific hypothesis that is testable on the basis of observing a process that is modeled via a set of random variable

  p_value. This is the probability, under the null hypothesis, of sampling a test A test result is called statistically significant  if it has been predicted as unlikely to have occurred and also we reject the null hypothesis

 correct answer is a, not consistent with the rest

Apr 29th, 2015

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Apr 29th, 2015
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