- The Observations From A Random Sample Of N 6 From A Normal Population Are 14 25 11 9 14 09 11 42 12 9 12 79 Tes 1 (34.83 KiB) Viewed 48 times
- The Observations From A Random Sample Of N 6 From A Normal Population Are 14 25 11 9 14 09 11 42 12 9 12 79 Tes 2 (31.85 KiB) Viewed 48 times
- The Observations From A Random Sample Of N 6 From A Normal Population Are 14 25 11 9 14 09 11 42 12 9 12 79 Tes 3 (43.05 KiB) Viewed 48 times
The accounts of a corporation show that, on average, accounts receivable are $ 295.76. An auditor checked a random sample of 16 of these accounts. The sample mean was $283.23 and the sample standard deviation was $26.17. Assume that the population distribution is normal. Test the null hypothesis that the population mean is $295.76, against a two-sided alternative. Answer the following, rounding your answers to three decimal places where appropriate. (a) What is the test statistic?-120 (b) What is the p-value of the test? (c) By interpreting the p-value in (b) can the null hypothesis be rejected at a 5% significant level? A. Do not reject the null hypothesis. ⒸB. Reject the null hypothesis.
A federal agency responsible for enforcing laws governing weights and measures routinely inspects packages to determine whether the weight of the contents is as advertised on the package. The agency will only take action if there is strong evidence that the packages are underfilled. A random sample of 14 containers was taken and the contents weighed, with the weights given below. The containers are labeled to have 9 ounces. In your role as a member of this crack federal team, you are to specify and carry out an appropriate hypothesis test to determine whether there is enough evidence to support this claim. (Use a 10% significance level.) 9.16 9.04 9.1 9.02 9.1 8.82 8.74 8.87 8.94 8.64 9.2 9.15 8.99 8.78 A. The value of the standardized test statistic: Note: For the next part, your answer should use interval notation. An answer of the form (-00, a) is expressed (-infty, a), an answer of the form (b, co) is expressed (b, infty), and an answer of the form (-∞, a) U (b, co) is expressed (-infty, a)U(b, infty). B. The rejection region for the standardized test statistic: C. The p-value is D. Your decision for the hypothesis test: