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During the fall harvest season in the United States, pumpkins are sold in large quantities at farm stands. Often, instead of weighing the pumpkins prior to sale, the farm stand operator will just place the pumpkin in the appropriate circular cutout on the counter. When asked why this was done, one farmer replied, "I can tell the weight of the pumpkin from its circumference." To determine whether this was really true, the circumference and weight of each pumpkin from a sample of 23 pumpkins were determined and the results stored in Pumpkin. a. Assuming a linear relationship, use the least-squares method to compute the regression coefficients b0 and b1 b. Interpret the meaning of the slope, b1, in this problem. c. Predict the weight for a pumpkin that is 60 centimeters in circumference. d. Do you think it is a good idea for the farmer to sell pumpkins by circumference instead of weight? Explain. e. Determine the coefficient of determination, r2, and interpret its meaning. g. At the 0.05 level of significance, is there evidence of a linear relationship between the circumference and weight of a pumpkin?
Describe the direction of the relationship between the Hamstring strength index 60°/s and the Shuttle run test and without using numbers, describe the relationship between the Hamstring strength index 120°/s and the Triple hop index.
1) The number of girls who attend a summer basketball camp has been recorded for the seven years the camp has been offered. Use exponential smoothing with a smoothing constant of .8 to forecast attendance for the eighth year. 75, 78, 75, 120, ..
Identify a business research topic and define the research questions for the identified problem or opportunity
Given the following, complete the ANOVA table and make the correct inference. Source SS df MS F Treatments ____ 2 3.24 ____ Error ____ 17 ____ Total 40.98 ____ a) In the above ANOVA table, is the factor significant at 5% level of significant? b) Wh..
What proportion of trucks can be expected to travel between 80,000 and 120,000 kilometres in the year and what percentage of trucks can be expected to travel either below 60,000 or above 140,000 kilometres in the year -How many kilometres will be tra..
A second researcher doubts these findings, believing that the actual figure is higher. To attempt to resolve the question, a simple random sample of 60 preschool children is chosen, and their TV watching habits are measured by having their parents ke..
Health plans use many tools to try to control the cost of prescription medicines. For older drugs, generic substitutes that are equivalent to name brand drugs are sometimes available at a lower cost. Another tool that may lower costs is restrictin..
What is the median processing time at the station?
a study was conducted to determine the impact of social media use on student learning. a total of 103 students taking a
Provide an example of the use of multiple regression
A project manager at System Design Corporation
refer to the following frequency distribution for questions 1 2 3 and 4.the frequency distribution below shows the
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