Question

A laboratory study was conducted to investigate whether spider weight affects the diameter of the web that orb spiders produce. the scientists exposed 20 spiders to a diet with sow bugs and flies and another 20 spiders to a diet of cap’n crunch. however, two of the spiders given the diet of sow bugs and flies died of malnutrition during the experiment. at the end of the first month scientists determined the diameter (in mm) of the webs spun by each spider. is there a significant difference in the mean diameter of webs spun by those fed a natural diet and those fed a diet high in artificial colors and flavors? assume all assumptions met. what is the t calculated value?

Answer 1

Without specific experimental data on the mean diameters of the spider webs, the t calculated value cannot be provided. A t-test would be used for statistical analysis to compare the mean diameters of the two groups' webs and determine if diet has a significant impact on web size.

Step-by-step explanation:

The t calculated value for determining whether there is a significant difference in the mean diameter of webs spun by spiders fed different diets cannot be provided without the specific data from the experiment. In a scientific study to assess the impact of diet on spider web size, you would typically collect the diameters of webs from two groups of spiders, one group fed a natural diet and the other a diet containing artificial colors and flavors. After collecting the data, you'd perform a statistical analysis, such as an independent sample t-test, to compare the means of the two groups.

Given the data, the t-test would yield a t calculated value that you would compare against a critical t value at a predetermined significance level (often 0.05 for a 95% confidence interval). If the calculated t value is greater than the critical value, you would reject the null hypothesis and conclude there's a significant difference between the two groups.