A research conducts a study to identify the relationship between variable A and Variable B. The datacollected from a random sample is presented in Table 2SubjectDependent VariableIndependent Variable(variable A)(variable B)123.519.6221.524.7317.516.9445.622.132.126.4661.055.2715.921.5822.677.29.34.535.81022.123.91126.423.71223.524.21359.960.51445.746.01543.244.11628.429.31754.855.91837.423.51942.359.92032.145.7a. What is the suitable correlation test for analyzing the data?b. Analyze the data by using the calculation method. What percentage of the variance in variable A isinfluenced by Variable B? Explain your answer.c. Report the results of the analysis

Data is given for Dependent variable and independent variable. We have to do correlation analysis…

Answered: A research conducts a study to identify…

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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On average, a car battery lifespan in Malaysia ranges from two to five years. It could be affected by the battery brand, vehicle type, area's climate, car care, and driving pattems. A researcher is interested to compare the car battery lifespan between two types of brands. The statistics of two brands of batteries are given in the following table. Brand A Brand B Sample mean Sample variance Sample size 2.8 3.1 1.2 1.5 10 12 Assume that the populations are approximately normally distributed. a) Construct a 90% confidence interval for the ratio of two variances of battery lifespan between Brand A and Brand B. Identify whether the two variances are equal or unequal. b) Based on your answer in a), test at 5% significance level whether there is a significant difference on the mean lifespan between Brand A and Brand B.
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