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Mathematics, 21.11.2019 06:31 mahaypatto
Experian would like to test the hypothesis that the average credit score for an adult in virginia is different from the average credit score for an adult in north carolina. a random sample of 40 adults in virginia had an average credit score of 699 and a random sample of 35 adults in north carolina had an average credit score of 682. it is believed that the population standard deviation for credit scores is 44 and 41 for virginia and north carolina residents, respectively. experian would like to set Ξ± = 0.05. define population 1 as virginia and population 2 as north carolina anda. use the critical value approach to test this hypothesis. b. construct a 95% confidence interval for the difference in population mean and interpret the results.
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Experian would like to test the hypothesis that the average credit score for an adult in virginia is...
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