The manager of supermarket wants to model the total weakly sales of beer, y as a function of brand. This model will enable the manager to plan the story’s inventory. The market carries three bands: beta 1, beta 2, beta 3. a) What type of independent variable is Brand of beer?
b) Write the model relating mean weekly beer sales, E (y), as function of brand of beer. Be sure to explain any dummy variables you use.
c) Interpret the \beta parameters of your model in part b.
d) In terms of the model parameters, what is the mean weekly sales for brand beta 3?
Suppose the manager uses brand beta 1 as the base level and obtains the prediction equation: y = 450 + 60x1 - 30x2
where x1 = 1 if brand beta 2 0 otherwise ; x2 = 1 if brand beta 3 0 otherwise
a) What is the difference between the estimated mean weekly sales for brands beta 2 and beta 1?
b) What is the estimated mean weekly sles for brand beta 2?

ian gone lie this got me confused

step-by-step explanation:

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).