An auditor analysing accounts payable of the Highlander Inc. checked a random sample of 36 of...

An auditor analysing accounts payable of the Highlander Inc. checked a random sample of 36 of these accounts. The sample mean was USD 131.78, and the sample standard error was USD 16.94.

1- Test at the 5% significance level against a two-sided alternative the null hypothesis that the population mean is USD 125.32

2- Construct 90% confidence interval for the population standard deviation.

Expert Solution

orchestra answered 1 year ago

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