Select the correct answer from each drop-down menu. Function P models the weekly profit, P(x), a clothing company earns for maki
ng and selling x jackets. P(x) = -0.0005(x^2 + 30)(x - 30)(x - 70) Consider the graph of function P.
The company’s profit will be exactly $0 if it makes and sells (blank) jackets.
A. 30
B. 20 or 70
C. 0
The company will make a profit if it makes and sells (blank) jackets,
A. Less than 20
B. Between 20 and 70
C. More than 70
but will not make a profit if it makes and sells (blank) jackets.
A. Between 20 and 70
B. Less than 30
C. More than 70
The company’s profit will be exactly $0 if it makes and sells (blank) jackets.
A. 30
B. 20 or 70
C. 0
The company will make a profit if it makes and sells (blank) jackets,
A. Less than 20
B. Between 20 and 70
C. More than 70
but will not make a profit if it makes and sells (blank) jackets.
A. Between 20 and 70
B. Less than 30
C. More than 70
2 answers:
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Answer:
True. See explanation below
Step-by-step explanation:
Previous concepts
Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".
The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"
If we assume that we have groups and on each group from
we have
individuals on each group we can define the following formulas of variation:
And we have this property
The degrees of freedom for the numerator on this case is given by where k represent the number of groups.
The degrees of freedom for the denominator on this case is given by .
And the total degrees of freedom would be
And the we can find the F statistic