Find the critical value for this confidence level. (A) ̶ 1.714 (C) +1.714 (B) ̶ 2.069 (D) + 2.069 19. Find the T score for the test statistic = 13.8 (A) ̶ 1.837 (C) ̶ 1.224 (B) ̶ 1.530 (D) ̶ 1.460 20. Based on the above T score – should you REJECT the null hypothesis H0? (A) YES (B) NO

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Use the sample data for problems 18 & 19 & 20 .

The Natural Cereal Company claims that the average weight of is cereal boxes is at least 15oz.

If a random sample of 24 boxes produced a sample mean = 13.8 and a sample standard deviation s = 4.8, use the sample mean and standard deviation to test the claim at the 95% (? = 0.05) significance level.

Use the hypothesis H0: μ = 15 and H1: μ < 15 with a one-tail test.

18. Find the critical value for this confidence level. (A) ̶ 1.714 (C) +1.714 (B) ̶ 2.069 (D) + 2.069

19. Find the T score for the test statistic = 13.8 (A) ̶ 1.837 (C) ̶ 1.224 (B) ̶ 1.530 (D) ̶ 1.460

20. Based on the above T score – should you REJECT the null hypothesis H0? (A) YES (B) NO

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