Drug Trial Problem Clinical trials for a drug was conducted using a treatment group and a placebo group.  The results are shown in the table below.   Treatment Placebo μ μ₁ μ₂ n 33 38 x̄ 2.31 2.87 s 0.85 0.71 Use a 0.05 significance level to test the claim that the two samples are from populations with different means. Determine the p-value. Round your answer to 4 decimal

T =???

Silvia Garcia is monitoring the operation of a machine that makes radar components. After studying the process, Silvia decides to construct a 3s p chart. She takes 10 daily samples of 200 components. Results are shown below. Sample 1 2 3 45 4 5 6 7 8 9 10 Total The process has -0- 0 1 >2 defective 6 02 7 7 8 8 9 14 12 7 8 86 % defective 0.03 0.035 0.035 0.04 0.04 0.045 0.07 0.06 0.035 0.04 points out of control.

Use the data below to test the claim that the weight loss was greater with the low fat diet compared to the low carbohydrate diet. Use a 5% level of significance. Low Fat Low Carbohydrate X = 4.71b X = 3.51b S1 = 7.21b "ị = 77 S1 = 6.91b n = 52 1. Identify the tail of the test. [ Select] 2. What is the P-value? [ Select] 3. Will the null hypothesis be rejected? [Select ] 4. Is the initial claim supported? [ Select]

Claim: p = 30; a = 0.06; o = 3.25. Sample statistics: x= 28.9, n 73 Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) CA. The critical values are + 1.88 O B. The critical value is Determine the outcome and conclusion of the test Choose the correct answer below. A. Fail to reject Ho At the 6% significance level, there is not enough evidence to support the claim, O B. Reject H, At the 6% significance level, there is enough evidence to support the claim. O C. Reject H At the 6% significance level, there is enough evidence to reject the claim O D. Fail to reject H,. At the 6% significance level, there is not enough evidence to reject the claim

Just the Skewness please

Solve the problem. Find the standardized test statistic t for a sample with n = 15, x = 8.7, s = 0.8, and a = 0.05 if Ho: Hs 8.4. Round your answer to three decimal places. a. 1.452 b. 1.631 c. 1.728 d. 1.312