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Advertising expenses are a significant component of the cost of goods sold. Listed below is a frequency distribution showing the advertising expenditures for 64 manufacturing
Advertising expenses are a significant component of the cost of goods sold. Listed below is a frequency distribution showing the advertising expenditures for 64 manufacturing companies located in the Southwest. The mean expense is $50.00 million and the standard deviation is $11.27 million. Is it reasonable to conclude the sample data are from a population that follows a normal probability 10 distribution? points Advertising Expense Number ($ Million) of Companies eBook 25 up to 35 35 up to 45 12 Print 45 up to 55 26 55 up to 65 12 References 65 up to 75 7 Total 64 Expicture Click here for the Excel Data File a. State the decision rule. Use the 0.02 significance level. (Round your answer to 2 decimal places.) He: The population of advertising expenses follows a normal distribution. H. . The nonuilation of advertising ovnancos dnoc not follow a normal distributionb. Compute the value of chi-square. (Round your answer to 2 decimal places.) 10 points Chi-square value eBook Print References c. What is your decision regarding He? Ho. This data from a normal distribution
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