Five samples of a ferrous-type substance were used to determine if there is a difference between a laboratory chemical analysis and an X-ray fluorescence analysis of the iron content. Each sample was split into two subsamples and the two types of analysis were applied, with the accompanying results. Assuming that the populations are normal, test at the 0.10 level of significance whether the two methods of analysis give, on the average, the same result. Click here to view the sample analyses. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. Let sample 1 be the X-ray fluorescence results and let sample 2 be the laboratory chemical results. State the null and alternative hypotheses. Ho: HD = 0 H1: HD # 0 Identify the critical region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to three decimal places as needed.) CA. t 2.132 OB. to O C. (> Determine the test statistic. t= (Round to two decimal places as needed.)A study was conducted to determine ifthe performance of a certain type of surgery on young horses had any effect on certain kinds of blood cell types in the animal FlUid samples were taken from each of six foals before and after surgery. The samples were analyzed for the number of postoperative white blood cell (WEC) leukocytes. A preoperative measure of WBC leukocytes was also measured. With the accompanying results. Use a paired sample tetest to determine if there lS a Significant change in WEC leukocytes With the surgery. Click here to View the leukocyte data Click here to View page 1 of the table of critical Values otthe t-distribution Click here to View page 2 of the table of critical Values otthe t-distribution Let sample 1 be the presurgery data letsample 2 be the postsurgery data. and let \"D: p.1- 112 State the null and alternative hypotheses. De ermine the test statistic Roam to two oeCImal places as needed ) Test the hypothesis that the average content of containers of a particular lubricant is 10 liters if the contents of a random sample of 10 containers are 10.3, 9.4, 9.7, 10.1, 10.2, 9.4, 9.6, 9.9, 10.1, and 9.4 liters. Use a 0.01 level of significance and assume that the distribution of contents is normal. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. - . . Identify the null and alternative hypotheses. O A. Ho: H = 10 B. Ho: H = 10 O C. Ho: H # 10 H1: H = 10 Hy : H # 10 Hy : H = 10 OD. Ho: H = 10 OE. Ho: H = 10 OF. Ho: H= 10 H1 : H = 10 Hy: H = 10 Hy: H > 10 Identify the critical region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. t> B. t 3.25 O c. to Find the test statistic. (Round to two decimal places as needed.)To find out whether a new serum will arrest leukemia, 9 mice, all with an advanced stage of the disease, are selected. Five mice receive the treatment and 4 do not. Survival times, in years, from the time the experiment commenced are provided. At the 0.01 level of significance, can the serum be said to be effective? Assume the populations to be normally distributed with equal variances. Click here to view the survival times. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. Let sample 1 be the mice that received treatment and let sample 2 be the mice that did not receive treatment. State the null and alternative hypotheses. Ho: H1 - H2 = 0 H1: 1 1 - 12 > 10 Identify the critical region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to three decimal places as needed.) O A t> ort 2.998 O C. 1= Determine the test statistic. t= (Round to two decimal places as needed.)