Parts a b and d per the three part rule 2. Using the data provided in question 1, assume now that the data was obtained from two indepen-dent samples. That is, 28 subjects were enrolled into the study, and half were randomly assignedto the corn flakes diet, and half to the oat bran diet. After two weeks the LDL cholesterol level ofeach individual was recorded.(a) What are the appropriate null and alternative hypotheses for a two-sided test?(b) Conduct the test at the 0.05 level of significance. What is the p-value?(c) What doyou conclude?(d) Construct a 95% confidence interval.(e) Compare the results obtained in this problem with the results obtained in question 1. LDL (mmol/l)Subject Corn FlakesOat Bran14.613.846.425.5735.405.8544.544.803.983.686.3.822.9675.014.414.343.723.803.49104.563.84115.355.26123.893.73132.251.84144.244.14

It is been asked to test whether the mean LDL cholesterol level between corn flakes diet and oat…

Answered: 2. Using the data provided in question…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The amount of coffee poured from a dispenser into a glassobeys the normal law whose average is 300 mL and the deviationtype 5 mL.a) What proportion of the glasses of coffee served by this dispenser contain less than 292 mL of coffee?b) If the glasses have a maximum capacity of 310 mL, whatproportion of glasses overflowing when usedwith this distributor?c) What should be the capacity of the glasses so that only 1% of them overflow when used?with this distributor?
(i) What distribution can we assume for the number of customers coming into a DMV in Los Angeles, California, per unit time (e.g., per hour) and (ii) What distribution can we assume for the time taken to serve the customers at the Los Angeles, California DMV office? a. Normal for (i) and Uniform for (ii). b. Poisson for (i) & exponential for (ii). c. Poisson for (i) & exponential for (ii). d. Normal for (i) & exponential for (ii). e. Poisson for (i) and (ii)
A tubes lifetime for your company's microwave follow an exponential distribution with a mean of 5.6 years. Your sales policy states that each magnetron tube has a two year warranty. What fraction of the tubes should your company plan to replace under warranty?
A pharmaceutical company fills a drug which is in a powder form into a bottle. It has an automatedprocess consisting of a filling machine and a sealing unit. After filling the bottle, it is automaticallysealed with a metallic cap. To monitor the quality of the process, samples of size 5 are drawnperiodically from the process and the quantity filled is measured. The table below has data on 12such observations.Sample 1 2 3 4 51 9.21 8.87 8.71 9.08 9.342 9.06 8.97 9.13 8.46 8.853 9.35 8.95 9.20 9.03 8.444 9.21 8.71 9.05 9.35 8.875 9.01 9.17 9.21 9.05 9.536 8.74 8.35 8.50 9.06 8.897 9.21 9.05 9.00 8.78 9.238 9.15 9.20 9.23 9.15 9.069 8.98 8.81 8.90 9.13 9.0510 9.03 9.10 9.26 9.44 8.4811 9.49 9.05 9.12 8.88 8.9312 8.95 9.10 9.02 9.04 8.96(a) Establish the upper and lower control limits for the X bar chart and the R Chart(b) Construct a control chart and investigate if the process is in controlValues for setting the control charts are A2 = 0.577, D3 = 0, D4 = 2.114
Sulfur dioxide (SO2) pollution is a known cause for corrosion of exposed steel. To document this effect in actual conditions, steel weight loss (gm/m3/yr) was measured at 36 locations in a large city, along with the rate at which SO2 was deposited (mg/m2/day). Perform a two-sided test of H0: ρ = 0.800, with α = 0.01. SO2 Loss 22.6 580 26.1 563 19.1 339 17.2 346 25 623 16.8 420 42.7 951 30.4 794 17.9 461 30.4 757 27.8 573 27.8 656 33 990 14.2 551 37.4 856 16.2 443 27.7 802 22.7 657 21 495 15.8 496 13.7 353 24.7 724 23.7 602 30.7 639 33.5 813 30.2 770 20.1 556 22.8 557 39.9 1001 15.5 432 40.4 940 27.9 687 39.4 919 25.1 590 28.6 640 29.7 702
A. The approximate standard deviation for the area under a gaussian curve for a population in the figure is .........
ABC Cookie Company takes samples of finished boxes of cookies weighing them to make sure the weight filled stays within the targeted amount. Some variation of course, is to be expected. But too much presents a production issue. Your job is to find out if this process is stable enough to continue. Samples are taken for 20 days. The number of boxes checked each day is 100. The 20 samples measured reveal the following proportions found to have defective weights: Sample Number Of Defectives Proportion Defective 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 6 0.06 0 0.00 4 0.04 10 0.10 6 0.06 4 0.04 12 0.12 10 0.10 8 0.08 10 0.10 12 0.12 10 0.10 14 0.14 8 0.08 6 0.06 16 0.16 12 0.12 14 0.14 20 0.20 18 0.18 Complete the following: Calculate the centerline (CL), upper control limit (UCL), and the lower control limit (LCL) for a P- Chart. You can use the Excel template to work through this problem. Create a control chart, showing the CL, LCL, and…
Workers in the office like to drink coffee during work. A doctor is concerned about this situation since the too much coffee consumption may result to long-term health problems. However, studies suggests that there is no risk in drinking three cups of coffee per day, which is about 250 mg of caffeine. The doctor wants to know if the amount of caffeine consumed by the workers is within tolerable limits. He randomly selected 20 students and found that they consume an average of 270 mg of caffeine each day with a standard deviation of 48 mg. Assume that the daily amount of caffeine consumed by students follow the normal distribution.1. Which of the following sets of hypotheses should be used in this study? A. Ho: μ = 250 vs. Ha: μ > 250 B. Ho: μ ≤ 250 vs. Ha: μ > 250 C. Ho: μ = 270 vs. Ha: μ > 270 D. Ho: μ = 270 vs. Ha: μ ≠ 270 2. Which of the following is(are) TRUE? I. The appropriate test procedure to answer the objective of the study is a…
The "spring-like effect" in a golf club could be determined by measuring the coefficient of restitution (the ratio of the outbound velocity to the inbound velocity of a golf ball fired at the clubhead). Twelve randomly selected drivers produced by two clubmakers are tested and the coefficient of restitution measured. The data follow: Club 1: 0.8406, 0.8104, 0.8234, 0.8198, 0.8235, 0.8562, 0.8123, 0.7976, 0.8184, 0.8265, 0.7773, 0.7871 Club 2: 0.8305, 0.7905, 0.8352, 0.8380, 0.8145, 0.8465, 0.8244, 0.8014, 0.8309, 0.8405, 0.8256, 0.8476 Test the hypothesis that both brands of ball have equal mean overall distance. Use α = 0.05 and assume equal variances. Question: Reject H0 if t0 < ___ or if t0 > ___.
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Reject or Fail to Reject the null hypothesis. There is or is not sufficient evidence to support the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment.

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