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Using the Central Limit Theorem. In Exercises 5–8, assume that females have pulse rates that are
6. a. If 1 adult female is randomly selected, find the
b. If 25 adult females are randomly selected, find the probability that they have pulse rates with a mean greater than 70 beats per minute.
c. Why can the normal distribution be used in part (b), even though the
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- Assume time to failure density function (in months) of transplanted kidneys has a Weibull distribution with shape factor of 3 and scale of 6. Use R and answer the following questions (enter your answers with 3 decimal points):arrow_forwardPls help ASAP and show all work and calculations.arrow_forwardHeart rate during laughter. Laughter is often called “the best medicine,” since studies have shown that laughter can reduce muscle tension and increase oxygenation of the blood. In the International Journal of Obesity (Jan. 2007), researchers at Vanderbilt University investigated the physiological changes that accompany laughter. Ninety subjects (18–34 years old) watched film clips designed to evoke laughter. During the laughing period, the researchers measured the heart rate (beats per minute) of each subject, with the following summary results: Mean = 73.5, Standard Deviation = 6. n=90 (we can treat this as a large sample and use z) It is well known that the mean resting heart rate of adults is 71 beats per minute. Based on the research on laughter and heart rate, we would expect subjects to have a higher heart beat rate while laughing.Construct 95% Confidence interval using z value. What is the lower bound of CI? a) Calculate the value of the test statistic.(z*) b) If…arrow_forward
- Chapter P, Section 3, Exercise 079 10 20 30 p(x) 0.70 0.15 0.15 (a) Use the probability function given in the table to calculate the mean of the random variable. Enter the exact answer. exact number, no tolerance (b) Use the probability function given in the table to calculate the standard deviation of the random variable. Round your answer to two decimal places. = the absolute tolerance is +/-0.01arrow_forwardPlease helparrow_forwardDo question 2arrow_forward
- Seat Designs. In Exercises 13–20, use the data in the table below for sitting adult males and females (based on anthropometric survey data from Gordon, Churchill, et al.). These data are used often in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats. (Hint: Draw a graph in each case.) Sitting Back-to-Knee Length (inches) Find the probability that a male has a back-to-knee length between 22.0 in. and 24.0 in.arrow_forwardSeat Designs. In Exercises 13–20, use the data in the table below for sitting adult males and females (based on anthropometric survey data from Gordon, Churchill, et al.). These data are used often in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats. (Hint: Draw a graph in each case.) Sitting Back-to-Knee Length (inches) Find the probability that a male has a back-to-knee length less than 21 in.arrow_forwardSection 2.0arrow_forward
- solve 1.3.6 please and explain the workarrow_forwardSection 4.1 Introduction to Probability Score: 4.67/15 4/15 answered Progress sa Question 11 > Giving a test to a group of students, the grades and gender are summarized below nt Evaluations В C Male 6. 5. 20 Female 3 17 15 If one student is chosen at random, find the probability that the student did NOT get a(n) "C" Probability = (Please enter a reduced fraction.) Submit Question -746..jpg pic 16131095275..jpg pic_16131095275...jpg W Zoomday17bsp21.docx pic_1615670389...jpg W X P N UAR 17 411 吕口 F3 D00 F4 F7 F5 %23 2$4 % & * 4 6. 7 8 9. W E R Yarrow_forwardThe table below shows the gold medal Olympic times (in seconds) for the 200-meter run. Data are shown for four of the first five Olympics of the 1900s and four more recent Olympics in the 2000s. Complete parts (a) through (c) below.arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage