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Each of the digits in a raffle is thought to have the same chance of occurrence. The table shows the frequency of each digit for
Each of the digits in a raffle is thought to have the same chance of occurrence. The table shows the frequency of each digit for consecutive drawings in a California lottery. Perform the chisquare test to see if you reject the hypothesis at the 0.1 significance level that the digits are from a uniform population. Digit Frequency Digit Frequency 6 46 5 46 1 48 6 56 2 42 7 34 3 56 8 28 4 58 9 52 Click here for the Excel Data File a. State the decision rule. Use 0.1 signicance level. (Round your answer to 3 decimal places.) H9: The digits are uniformly distributed. H1: The digits are not uniformly distributed. b. Compute the value of chisquare. (Round your answer to 3 decimal places.) : The National Cable and Telecommunications Association recently reported that the mean number of HDTVs per household in the United States is 2.30 with a standard deviation of 1.474 sets. A sample of 100 homes in Boise. Idaho, revealed the following sample information. Number of Number of HDTVs Households 7 27 28 18 10 5 or more 10 Total 190 #WNHG Click here for the Excel Data File At the 0.05 signicance level, is it reasonable to conclude that the number of HDTVs per household follows a normal distribution? (Hint. Use limits such as 0.5 up to 1.5, 1.5 up to 2.5, and so on.) a. State the decision rule. Use 0.05 significance level. (Round your answer to 2 decimal places.) Hg: The population of television sets follows a normal distribution. H1: The population of television sets does not follow a normal distribution
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