Exhibit 12-1 A card dealing machine deals spades (1),hearts (2),clubs (3),and diamonds (4)at random as if from an infinite deck.In a randomness check,1,600 cards were dealt and counted.The results are shown below. Refer to Exhibit 12.1.Using the critical value approach,the decision and conclusion are:

Question

Exhibit 12-1 A card dealing machine deals spades (1),hearts (2),clubs (3),and diamonds (4)at random as if from an infinite deck.In a randomness check,1,600 cards were dealt and counted.The results are shown below.  Refer to Exhibit 12.1.Using the critical value approach,the decision and conclusion are:

Quizplus · Accepted Answer

Using the critical value approach, we need to calculate the test statistic and compare it to the critical value at a significance level of 0.05/4 = 0.0125 (Bonferroni correction for multiple comparisons). The test statistic is 2.577 and the critical value is 3.182. Since the test statistic is less than the critical value, we do not reject the null hypothesis. Therefore, we cannot conclude that not all of the proportions are equal to 0.25.

Exhibit 12-1 a Card Dealing Machine Deals Spades (1),hearts (2),clubs