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Posted: July 1st, 2023

COFFEE The population mean and standard deviation

Part III. For the following problems find: (a)the standard error (b)the test statistic (c)the critical value (1) COFFEE The population mean and standard deviation are 3 and .18, respectively. For a sample of 36, the sample mean is 2.92. One tail test and the level of significance is 5%.(2)GOLF BALLS The population mean and standard deviation are 295 and 12, respectively. For a sample of 50, the sample mean is 297.6. Two tail test and the level of significance is 5%(3)AIRPORT SURVEY The population mean is 7. For a sample of 60, the sample mean and sample standard deviation are 7.25 and 1.052, respectively. One tail test and the level of significance is 5%(4)LADY GAGA DOLL The population mean is 40. For a sample of 25, the sample mean and sample standard deviation are 37.4 and 11.79, respectively. Two tail test and the level of significance is 5%

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