2. An experiment was conducted to determine whether four firing temperatures affect the density ofbrick. The experiment led to the following informationTemperature100125150175200TotalGrand MeanNo. of Bricks(Reps)3443418Total Density65.486.087.165.286.1389.8MeanDensity21.8021.5021.7821.7321.52108.3321.67density=8441.82a. At a=0.05, test whether the mean density of five firing temperatures are significantlydifferent.

Given data: Temperature No. of Bricks (Reps) Total Density Mean Density 100 3 65.4 21.80…

Answered: 2. An experiment was conducted to…

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 following data represent the results from the specific gravity (S.G.) test performed in a soil laboratory including forty samples of sand. Construct "greater than" cumulative frequency distribution and ogive, find the number of samples have S.G. of 2.70 or more? Choose the correct :answer Specific Number of Gravity 2.30-2.39 2.40-2.49 2.50-2.59 2.60-2.69 2.70-2.79 2.80-2.89 Samples 2 4 6 12 14 2 (20-22) O (8-10) O (30-32) O (15-17) O (34-36) O
Research department of the Municipal hospital in Prampram collected the mass (kg) of patients :it visited the health facility on March, 2018. Below are the masses (kg) of 40 patients who visited •.r hospital for analysis: 55 70 57 73 55 59 64 72 60 48 58 54 69 51 63 78 75 64 65 57 71 78 76 62 49 66 62 76 61 63 63 76 52 76 71 61 53 56 67 71 a) Construct a frequency table for the data using class width of 5. b) Calculate the mean, median and the standard deviation of the mass of the distributior c) Construct the cumulative graph.
1.3.2 Consider the output given below that was obtained using the One Proportion applet. Use information from the output to find the standardized statistic for a sample propor- tion value of 0.45. Probability of success (n): 0.30 Sample size (n): 25 Number of samples: 1000 O Animate Draw Samples Total = 1000 180 Mean = 0.301 SD = 0.091 120 60 0.08 0.16 0.24 0.32 0.40 0.48 0.56 0.64 Proportion of success
A sample of 15 participants took part in a hearing experiment. Among other things, the absolute hearing threshold (in decibels) was measured for each participant. The 15 measurements were as follows. 25,22,18,35,37,34,31,39,39,39,36,36,33,33 30 Draw the histogram for these data using an initial class boundary of 17.5, an ending class boundary of 45.5, and 4 classes of equal width.
Below is a list of vertical jumps (in cm) for 24 athletes who compete in various different sports.28 45 55 46 70 72 62 32 75 68 74 54 50 62 63 31 55 68 73 55 60 69 68 92Part A. Using # of classes = 4, create a frequency table for the given data set, and use your frequency table to construct a histogram.Part B. Using the data set above, calculate the quartiles Qi where i = 0, 1, 2, 3, 4, and construct a box-and-whiskers plot for this data set.Part C. Calculate the 15th percentile of this data set.
Use the following sample to evaluate H0: μ = 65, at significance level α = 0.05. 53 75 68 53 57 12 4 10 45 94 23 73 9 41 79 92 90 46 49 71 State the correct test and your conclusion. T-test. Reject Ho. T-test. Fail to reject Ho. Z-test. Fail to reject Ho. Z-test. Reject Ho.
Given the following data and using Jamovi, test (at an alpha of 0.05) whether type of music influences heart rate (measured in beats per minute, bpm). Participant Rock Classical Heavy Metal ROW MEANS = 1 70 64 90 74.67 2 78 69 85 77.33 3 80 72 67 73 4 82 65 100 82.33 5 81 67 120 89.33 6 80 58 98 78.67 GROUP MEANS = 78.5 65.83 93.33 Total mean = 79.22 What are the degrees of freedom for between persons? ________ What is the critical value (from table): ___________________
1.4 The following table shows the results of the tasting panel. 2 = GOOD 1 = AVERAGE 0 = BAD Judge Peanut brittle bar Chocolate marshmallow cookie Caramel/chocolate nut bar 1 2 2 1 2 2 2 1 3 2 1 4 1 2 1 5 2 1 2 Total 1.4 Give the total score of EACH desert and the most popular desert. 1.5 When we do bake, it is important that we are able to convert from big units to smaller units. Do the following measurement conversions. 300 ml to litres 500g to Kilograms 15g to milligrams 1.5.1 1.5.2 1.5.3

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