Evaluate tan-1 x dx 8.
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- A doctor works at a hospital estimate when to leave for work from his apartment; he decided to measure how long it takes him to go to the hospital every day. For one week, he records the time it gets him to drive from his apartment to the hospital, including searching for parking and reaching to his office. The data are as follows: M Eighty-one Min T Fifty-four Min W Seventy Min R Fifty-two Min F Forty-three Min 1- Will you recognize these times as a sample or a population? and way 2- Obtain the mean and the standard deviation for the time it requires him to go to his office at the hospital. 3- Lets say his roommate, who is working with him at the same hospital and same office, takes the train to the hospital. She records the time it takes her to get to the office during the exact week and was that her mean was Sixty-two minutes, and the standard deviation was Five. Based on these measurements, it is convenient to drive or ride the…To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades:3.6 in a 5 credit Math course2.5 in a 2 credit Music course3.0 in a 5 credit Chemistry course3.1 in a 6 credit Journalism courseWhat is the student's GPA for that term? Round to two decimal places. Student's GPAHello. I am having problems with this question. I was wondering if an expert could help me out.
- Let us measure the degree of relationship between the performance rank obtained by the ten trainees during the first and second evaluation period. Student trainee Rank 1st evaluation Rank 2nd evaluation A 8 7 B 2 5 C 7 10 D 1 4 E 4 2 F 9 6 G 3 1 H 6 9 I 10 8 J 5 3 State your hypothesis and show your solution and state your final conclusion.Acid rain Based on long-term investigation, research-ers have suggested that the acidity (pH) of rainfall in the Shenandoah Mountains can be described by the Normalmodel N(4.9, 0.6).a) Draw and carefully label the model.b) What percent of storms produce rainfall with pHover 6?c) What percent of storms produce rainfall with pHunder 4?d) The lower the pH, the more acidic the rain. What isthe pH level for the most acidic 20% of all storms?e) What is the pH level for the least acidic 5% of allstorms?f) What is the IQR for the pH of rainfall?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.)
