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Volgvan
3 years ago
12

Choco-Chippy Cookie Company has two different manufacturing plants. Company officials want to test whether each plant fills the

bags with the same number of ounces. A random sample of cookie bags from plant A had a mean of 24.2 ounces in each bag. A random sample from plant B had a mean of 22.2 ounces. They randomized the data over 100 trials, and the difference of means for each trial is shown in the dot plot below. What can Choco-Chippy Cookie Company conclude from this study?
A)The difference is significant because a difference of 2.0 is very likely.
B)The difference is significant because a difference of 2.0 is not very likely.
C)The difference is not significant because a difference of 2.0 is very likely.
D)The difference is not significant because a difference of 2.0 is not very likely.

Mathematics
2 answers:
MrRissso [65]3 years ago
8 0

Answer:

The correct answer is D

Step-by-step explanation:

The difference is not significant because a difference of 2.0 is not very likely.

If we see the dot plot shown, we can see that the variation is not likely to be 2.0 because at most dots points the difference is not close to 2. Its either 3,4 or 1. The difference would only be significant if 2.0 was likely. Hence, option D is correct.

                                                                                         

garik1379 [7]3 years ago
4 0

Answer:

The correct answer is D

Step-by-step explanation:

As it can be clearly visualized from the graph that the variation is not likely to be 2.0 as at most of the points the difference is not close to 2.0

Hence, The difference is not significant because a difference of 2.0 is not very likely.


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Which equation is the inverse of 5 y + 4 = (x + 3) squared + one-half?
telo118 [61]

Answer:

The correct option is the last option d.) y = negative 3 plus-or-minus StartRoot 5 x + seven-halves EndRoot

Step-by-step explanation:

the given equation is 5y + 4 =(x+3)^{2}  + \frac{1}{2}

Therefore we can write 5y\hspace{0.1cm} = (x+3)^{2} + \frac{1}{2} - 4  \hspace{0.3cm}   \Rightarrow  \hspace{0.2cm}  5y = (x+3)^{2} - \frac{7}{2}   \hspace{0.3cm} \Rightarrow \hspace{0.3cm}  y = \frac{(x+3)^{2}}{5} - \frac{7}{10}

To find the inverse of the above function let us replace x with y and y with x.

Therefore we get

x = \frac{(y+3)^{2}}{5} - \frac{7}{10}

Now we write the above equation with only y on the Left hand side and we will obtain the inverse of the given function

y = \pm \sqrt{5 (x + \frac{7}{10} )} \hspace{0.1cm} - \hspace{0.1cm} 3 \hspace{0.1cm} \Rightarrow\hspace{0.1cm}  y =  \pm \sqrt{5x + \frac{7}{2} }  - \hspace{0.1cm} 3 \hspace{0.1cm}

Therefore the correct option is the last option d.) y = negative 3 plus-or-minus StartRoot 5 x + seven-halves EndRoot , y =  \pm \sqrt{5x + \frac{7}{2} }  - \hspace{0.1cm} 3 \hspace{0.1cm}

8 0
3 years ago
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d1i1m1o1n [39]

The initial value is 21 and rate of change is 16 pages per week

<em><u>Solution:</u></em>

Given that After writing part of his novel, Thomas is now writing 16 pages per week

After 4 weeks, he has written 85 pages.

Given that assume the relationship to be linear

Linear relationships can be expressed either in a graphical format or as a mathematical equation of the form y = mx + c

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Therefore, initial value is 21 and rate of change is 16 pages per week

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then you movie to the up of x-axis like -5 to -2.

So the answer was (7,-2)

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