dolution
dolution.
 For the customers in Exercise 2,
(a) If the customers apply for the three cards according to the historical proportions, about how big, on average, would you expect the x2 statistic to be (what is the mean of the x2 distribution)?
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Order Paper Now(b) Does the statistic you computed in Exercise 2 seem large in comparison to this mean? Explain briefly.
(c) What does that say about the null hypothesis?
(d) Find the a = 0.05 critical value for the x2 distribution with the appropriate number of df.
(e) Using the critical value, what do you conclude about the null hypothesis at a = 0.05?
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