The computer output given below shows a regression of Wing Length (mm) vs. Body Mass (g) for sphinx moths. 
a) What is the estimated regression line?
b) What is the calculated value of sb?
c) What is the calculated value of se?
d) In a few sentences, interpret se in the context of this problem.
e) Using the computer output above, perform the Model Utility Test at the .05 level of significance.
f) Construct a 95% confidence interval for β.
Definitions:
Inventory Turnover
A ratio indicating how many times a company has sold and replaced inventory over a specific period, showing efficiency in managing stock.
Cash Cycle
The duration between the outlay of cash for the purchase of inventory and the collection of cash from customers, reflecting the efficiency of a company's cash management.
Payables
Financial obligations or amounts owed by a business to its suppliers or creditors for goods and services received.
Firm's Cash Cycle
The time period it takes for a company to convert its investments in inventory and other resources into cash flows from sales.
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