Number of roaches in each chamber over time(warm vs cold) Trials Warm cold 1 1 9 2 2.3 7.7 2.8 7.2
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Make a chi square and evaluate the data statistically. Also breifly explain the results.
Given :
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- How to determine if a histogram has much variation or little variation?Correlation does not imply causation. What does this mean? Find an example in the media that needs to understand this concept and explain it to your peers. Be sure to include the link to the example you are using.Pls help with below homework. Explain the important concept of the ‘prediction table.’ including the difference between the diagonal cells of the table and the off-diagonal cells. Provide an example of such a table (and draw it) for a problem with two choices and 120 observations.
- Explain MEAN SQUARES (M S) AND F RATIOS.Which are the graphs for quantitative data?The pathogen Phytophthora capsici causes bell peppers to wilt and die. Because belI peppers are an important commercial crop, this disease has undergone a great deal of agricultural research. It is thought that too much water aids the spread of the pathogen. Two fields are under study. The first step in the research project is to compare the mean soil water content for the two fields. Units are percentage of water by volume of soil. Field A samples, x: 10.0 10.7 15.5 10.4 9.9 10.0 16.6 15.1 15.2 13.8 14.1 11.4 11.5 11.0 Field B samples, x,: 8.3 8.5 8.4 7.3 8.0 7.1 13.9 12.2 13.4 11.3 12.6 12.6 12.7 12.4 11.3 12.5 A USE SALT Use a calculator to calculate x,, s,,x,, and s,. (Round your answers to four decimal places.) x, (a) Assuming the distribution of soil water content in each field is mound-shaped and symmetric, use a 5% level of significance to test the claim that field A has, on average, a higher soil water content than field B. (1) What is the level of significance?
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