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101 قائمة الخيارات:  المنتدى

A survey was conducted to determine if the air travel anxiety depends upon the frequency of air travel. The number of passengers self -reporting air travel anxiety based on their frequent fliers status is as follows.

Anxiety

No Anxiety

Total

Not a frequent fliers

10

30

40

Frequent Fliers

20

40

60

Total

30

70

100

Write the answers of the following questions:

  1. Write the Null and Alternative Hypothesis.
  2. What is expected frequency corresponding to the observed frequency 40?
  3. What is the degree of freedom for this testing?
  4. If the calculated value of test statistic chi squared is 0.79 and the critical value of chi squared with alpha space equals space 0.05  is 3.841, write a statement whether you reject the null hypothesis or not.
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