Four mixer trucks, A, B, C, D, are used to move concrete from the batching plantto the construction site. Table Q4 shows the amount of fuel, in litres, used per metercube of concrete moved for each truck. Test the hypothesis that the mean amountof fuel used per meter cube of concrete moved is the difference for each truck. Usethe 5% level of significance.Q4- END OF QUESTIONS –please asapTable Q4: Amount of fuel, in litres, used per meter cube of concrete for each truckTruck ATruck BTruck CTruck D0.210.210.220.220.250.210.200.180.200.210.210.210.210.180.210.190.200.220.200.180.190.200.190.200.180.230.190.20

Answered: Image /qna-images/answer/a4b5fc16-193c-416e-ab48-d06f2341bc91.jpg

Answered: Four mixer trucks, A, B, C, D, are used…

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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A manufacturer of aluminium cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 3.6 1.6 2.0 2.4 6.7 1.4 3.2 5.2 3.8 5.6 8.9 4.1 4.5 4.7 5.0 2.8 5.8 6.1 3.9 6.9 8.0 3.4 3.2 3.8 part 2. yes or no
Please double check my answers.
In a pharmaceutical company, the proportion of injection bottles found defective were 0.2, 0.1, 0.8, 0.04 out of 80, 60, 40 and 50 sample bottles. Calculate control limits. Q9.
A packaging company fills bags so that each bags has an average weight of 250 grams. The owners take a sample of bags and records the weight (grams) of each. They found the following information: Five-Number Summary (in grams) Min 213.97 Q1 236.34 Q2 244.1 Q3 255.47 Max 272.5 75% of bags weigh more than which amount?
Las Vegas has seen increased competition from Singapore and Macau for customers in the casino resort industry. One measurement of success is the average length of stay by visitors. The data in this file show the number of days a random sample of visitors stayed at each location. a. Using α = 0.05 to determine if there is a difference in the average length of stay by visitors for the three locations. Follow the steps as outlined in the exercises. b. If warranted, perform a multiple comparison test to determine which pairs are different using α = 0.05. c. Verify your results using Excel.
2. The level of dissolved oxygen in a river is an important indicator of the water's ability to support aquatic life. You collect water samples at 15 randomly chosen locations along a stream and measure the dissolved oxygen. Here are your results in milligrams per liter. 4.53 5.04 3.29 5.23 4.13 5.50 4.83 4.40 5.42 6.38 4.01 4.66 2.87 5.73 5.55 Construct and interpret a 95% confidence interval to estimate the mean dissolved oxygen level in the stream.
I miss the staying class. Can somebody help me walk me through this?
Estimate the average mark in an exam using the following table: Marks Total Percentage of Students (Type your final answer in decimal form.) Answer: 0-10 0- < 20 0-< 30 0- <400- <50 0.14 0.26 0.56 0.8 1
A manufacturer of aluminium cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 1.5 2.0 2.7 1.3 2.9 6.2 3.1 4.8 3.5 3.7 2.9 3.9 4.1 2.2 4.2 1.9 1.1 4.4 4.9 1.8 5.2 5.8 3.3 2.9 Construct a boxplot for the given sample.
The chlorine added to swimming pools to combat relatively short shelf before it loses its effectiveness. Records indicate that the mean shelf life of a 5 gallon jug of chlorine is 2,160 hours (90 days). As an experiment, Holdlonger was added to the chlorine to whether it would increase the shelf life of the chlorine. A sample of nine jugs of chlorine had these shelve lives (in hours): 2,159, 2, 170, 2,180, 2,179, 2,160, 2,167, 2,171, 2,181 and 2,185. At the .025 significance level, has Holdlonger increased the shelf life of the chlorine? S=9.3823, sample mean=2172.44 STATE THE NULL AND ALTERNATE HYPOTHESIS. Determine the critical value for the decision rule.
your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.

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