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- Is this correct so far?Is this correct?Print A medical researcher says that less than 87% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 400 adults in that country, 85% think that healthy children should be required to be vaccinated. At a = 0.01, is there enough evidence to support the resear claim? Complete parts (a) through (e) below. 4 (a) Identify the claim and state H, and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. Less than % of adults in the country think that healthy children should be required to be vaccinated. O B. More than % of adults in the country think that healthy children should be required to be vaccinated. OC. % of adults in the country think that healthy children should be required to be vaccinated. O D. The percentage of adults in the country who think that healthy children should be required to be…
- The following are the cystatin C levels (mg/L) for the patients described in Exercise 15 (A-17).Cystatin C is a cationic basic protein that was investigated for its relationship to GFR levels. In addition, creatinine levels are also given. (Note: Some subjects were measured more thanonce.) Cystatin C (mg/L) Creatinine (mmol/L) 1.78 4.69 0.35 0.14 2.16 3.78 0.30 0.11 1.82 2.24 0.20 0.09 1.86 4.93 0.17 0.12 1.75 2.71 0.15 0.07 1.83 1.76 0.13 0.12 2.49 2.62 0.14 0.11 1.69 2.61 0.12 0.07 1.85 3.65 0.24 0.10 1.76 2.36 0.16 0.13 1.25 3.25 0.17 0.09 1.50 2.01 0.11 0.12 2.06 2.51 0.12 0.06 2.34Source: D. M. Z. Krieser, M.D. Used with permission.(a) For each variable, compute the mean, median, variance, standard deviation, and coefficient ofvariation.(b) For each variable, construct a stem-and-leaf display and a box-and-whisker plot.(c) Which set of measurements is more variable, cystatin C or creatinine? On what do you baseyour answer? that question from…Over a 4-month period, among 30 people with bipolar disorder, patients who were given a high dose (10 g/day) of omega-3 fats from fish oil improved more than those given a placebo. This experiment involved a control group of subjects who received a placebo. Why didn't the experimenters just give everyone the omega-3 fats to see if they improved? Choose the correct answer below. O A. They need to avoid confounding the participants. O B. They need to compare omega-3 results to something. O C. They need to conserve omega-3 fats. O D. They need to blind the participants.A physician wants to see if there was a difference in the average smokers' daily cigarette consumption after wearing a nicotine patch. The physician set up a study to track daily smoking consumption. In the study, the patients were given a placebo patch that did not contain nicotine for 4 weeks, then a nicotine patch for the following 4 weeks. Test to see if there was a difference in the average smoker's daily cigarette consumption using α = 0.01. The hypotheses are: H0 : μD = 0 H1 : μD ≠ 0 t-Test: Paired Two Sample for Means Placebo Nicotine Mean 18.75 12.3125 Variance 66.599 34.6667 Observations 16 16 Pearson Correlation 0.6105 Hypothesized Mean Difference 0 df 15 t Stat 3.5481 P(T<=t) one-tail 0.0126 t Critical one-tail 2.6025 P(T<=t) two-tail 0.0252 t Critical two-tail 2.9467 What is the correct p-value? Question 1 options:…
- A medical researcher says that less than 82% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 78% thínk that healthy children should be reguired to be vaccinated. At a = 0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. H: ps O E. Ho: p= Hyip Haip= O D. Ho: p. O B. The rejection region is I test statisticz Fail to reject laces as needed.) Reject ject or fail to reject the null hypothesis and (e) interpret the decision in the context of the original claim. the null hypothesis. There V enough evidence to V the researcher's claim.Approximately 281.000,000 people over age five live in the United States. Of these people, 55,000,000 speak a language other than English at home. Of those who speak another language at home, 62.3 percent speak Spanish. E= speaks English at home • E'= speaks another language at home •S= speaks Spanish at home What is P(E')? I.For H0 and H1 with 0.05 alpha, HO: Salary and Gender are independent H1: Salary and Gender are not independent Data are Female High 30 Low 55 35 Please write down the upper cv for this test with 2 decimal point. Male 50 Other 30 20
- Alpha again Environmentalists concerned about theimpact of high-frequency radio transmissions on birdsfound that there was no evidence of a higher mortalityrate among hatchlings in nests near cell towers. Theybased this conclusion on a test using a = 0.05. Wouldthey have made the same decision at a = 0.10? Howabout a = 0.01? Explain.An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student Score on first test Score on second test 621 573 577 627 373 369 399 717 488 553 634 478 558 623 10 11 12 13 14 D 618 518 503 604 415 350 439 609 409 481 594 431 527 591 1 2 3 4 6 8 Identify the rejection region(s). Choose the correct answer below. O A. t 2.650 O B. t 3.012 OC. t3.012 (c) Calculate d and sd. d = - 35.786 (Type an integer or a decimal. Round to three decimal places as needed.) Calculate sd- Sa = 133.096 (Type an integer or a decimal. Round to three decimal places as needed.)An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student Score on first test 1 3 4 9 10 11 12 13 14 D 436 396 447 520 526 517 596623 575 403 591 622 527 338 Score on second test 437 405 457 545 474 530 536 626 590 407 622 658 551379 5 6 7 8 Identify the rejection region(s). Choose the correct answer below. OA. t3.012 O C. t 3.012 O D. t 2.650 (c) Calculate d and sa. d = -7.143 (Type an integer or a decimal. Round to three decimal places as needed.) Calculate sa. (Type an integer or a decimal. Round to three decimal places as needed.)