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yawa3891 [41]
3 years ago
11

Bus math 2 ch6 test help pls

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0

Answer:

$9.47

Step-by-step explanation:

Add all her purchases together

97.62 + 22.95 + 14.78 = 135.35

The total tax is 6.5% sales tax, and 0.5% country tax

6.5% + 0.5% = 7%

Multiply the total amount spent by the total tax

Remembering that you need to convert the 7% into an integer, by simply diving by 100 first

135.35 * 0.07 = 9.47

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A car company is testing a new type of tire. They want to determine the time to 60 mph from a full stop in light rain, light sno
Andrej [43]

Answer:

For this case the factor would be:

Road conditions

Because we are testing a new type of tire in order to determine if the time to 60 mph from a full stop in light raing, ligth snow and dry conditions.

Step-by-step explanation:

Previous concepts

By definition a factor usually known as "the independent variable is an explanatory variable manipulated by the experimenter".

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 p groups and on each group from j=1,\dots,p we have n_j individuals on each group we can define the following formulas of variation:  

SS_{total}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2

SS_{between}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2

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SST=SS_{between}+SS_{within}

Solution to the problem

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Road conditions

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Th use 5 experimental units that are selected from the an specific lot. And they want to test is the stopping distance is significantly different.

And for this case we can use a one way ANOVA to test if the means are equal  in the 3 groups.

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Solve following system of equations using the elimination method and enter the value of x.
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