Q2)Researchers at a paint manufacturer are trying to develop a new type of gloss paint with a shorterdrying time than the current product. In order to test whether the drying time has been reduced,the researchers paint a square metre of each of the new and old paints on each of 10 differentsurfaces. The time, in hours, that each square metre takes to dry is recorded in the table below:Surface12345 67 8 910Old paint17.1 17.3 16.9 17.4 17.5 17.3 16.6 17.5 18.0 17.6New paint16.6 17.2 17.0 17.1 17.6 16.5 16.9 17.3 17.3 16.9(a) Test, at the 0.05 level of significance, whether there is any reduction in the mean drying time.(b) State the assumption required to carry out the test in (a).(c) Find the p-value of the test in (a).(?? Marks)

Answered: Image /qna-images/answer/749ef612-336b-4458-9b53-ff89c7bbe8fc.jpg

Answered: Q2) Researchers at a paint manufacturer…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Four paints are being tested for weight loss in an abrasion machine. These paints differ in the proportion of one basic ingredient. The abrasion machine can handle three paint panels at one time. Yield is measured in terms of weight loss in a fixed period of time and at a fixed speed of the machine. Four runs are made. Consider run as block. The data are stated in coded units. Paint Run A B C D 1 13 10 29 2 15 23 21 3 18 29 14 4 20 26 12 a) Construct an ANOVA table and test whether there is a significant effect among treatments?
Suppose the presence of phosphates in certain waste products dumped into a lake promotes the growth of algae. Rampant growth of algae affects the oxygen supply in the water, so an environmental group wishes to estimate the area of algae growth. The group measures the length across the algae growth (see the figure) and obtains the data (in feet) in the table. x Need Help? Length 0 12 15 15 0 10 20 30 40 27 Use 8 rectangles with bases of 10 feet and lengths measured at the left-hand endpoints to approximate the area of the algae growth. (Give an exact answer. Do not round.) 2680 x sq ft 9555 50 60 70 80 Length 24 21 20 0 Read It Algae growth 0 10 20 30 40 50 60 70 80
Can balloons hold more air or more water before bursting? A student purchased a large bag of 12-inch balloons. He randomly selected 10 balloons from the bag and then randomly assigned half of them to be filled with air until bursting and the other half to be filled with water until bursting. He used devices to measure the amount of air and water was dispensed until the balloons burst. Here are the data
In your Capstone software create a table with the following variables: Position x, m: 1, 2, 3, 4 Coefficient of friction μ: 0.36 Velocity v, m/s: v=V 2. u.9.8.x
#6) You use 2,500 incandescent holiday lights to decorate your apartment in Huntington. When turned on, the combined power of those lights is 1200 Watts. The electricity cost around is 6.40 cents per kilo- Watt-hour. How much is the total cost of electricity for the lights if you operate the 2,500 incandescent holiday lights for 24 hours per days for 50 days? Report your answer with the proper number of sig figs and rounding. Show all conversions. Express answer to 3 sig figs. Report answer in dollars.
Solve the following exercise:

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