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Zigmanuir [339]
3 years ago
5

Last questions for my last 15 pts.

Mathematics
1 answer:
klemol [59]3 years ago
8 0

Step-by-step explanation:

{6}^{2}  - 10  \\  = 36 - 10 \\  = 26 \\ so \: kurt \: forgot \: to \: write \: units \: place \: \\  number \: 6 \: after \: 2.

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16 = M - 14 what is the answer for this Question. thank you!
Ivenika [448]
16+14 = 30.

30 is your answer
6 0
3 years ago
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Janice bought juice packets for the 15 players on the soccer team. The juice packets come in boxes of 6. How many boxes did jani
lara [203]
Janice bought 3 boxes.

Each box has 6 juice pockets. However, there are 15 players on the soccer team. Two boxes would not be enough, since that would only total 12 juice packets.

So, Janice has to buy 3 boxes, which is 18 juice packets.
8 0
3 years ago
Paired t‐Test for Mean Comparison with Dependent Samples To study the effects of an advertising campaign at a supply chain, seve
Lapatulllka [165]

Answer:

a) t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{0.7 -0}{\frac{0.678}{\sqrt{5}}}=2.308  

p_v =P(t_{(4)}>2.308) =0.0411

So the p values is lower than the significance level given 0.05, so then we can conclude that we reject the null hypothesis.

b) The p value is illustrated on the figure attached.

If we select \alpha=0.01 we see that p_v >\alpha so then we have enough evidence to FAIL to reject the null hypothesis.

Step-by-step explanation:

Part a

A paired t-test is used to compare two population means where you have two samples in  which observations in one sample can be paired with observations in the other sample. For example  if we have Before-and-after observations (This problem) we can use it.  

Let put some notation  

1=test value old , 2 = test value new

1: 5.2 6.5 7.2 5.7 7.6

2: 6.4 7.8 6.8 6.5 8.2

The system of hypothesis for this case are:

Null hypothesis: \mu_2- \mu_1 \leq 0

Alternative hypothesis: \mu_2 -\mu_1 >0

The first step is calculate the difference d_i=y_i-x_i and we obtain this:

d: 1.2, 1.3, -0.4, 0.8, 0.6

The second step is calculate the mean difference  

\bar d= \frac{\sum_{i=1}^n d_i}{n}=0.7

The third step would be calculate the standard deviation for the differences, and we got:

s_d =\frac{\sum_{i=1}^n (d_i -\bar d)^2}{n-1} =0.678

The 4 step is calculate the statistic given by :

t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{0.7 -0}{\frac{0.678}{\sqrt{5}}}=2.308

The next step is calculate the degrees of freedom given by:

df=n-1=5-1=4

Now we can calculate the p value, since we have a right tailed test the p value is given by:

p_v =P(t_{(4)}>2.308) =0.0411

So the p values is lower than the significance level given 0.05, so then we can conclude that we reject the null hypothesis.  

Part b

The p value is illustrated on the figure attached.

If we select \alpha=0.01 we see that p_v >\alpha so then we have enough evidence to FAIL to reject the null hypothesis.

7 0
3 years ago
Answer pls !!!!!!!!!!
Bas_tet [7]

Answer:72.3456

Step-by-step explanation:

Take pi (3.14)times r squared (radius)4.8^2

7 0
3 years ago
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The area of a square region is 169 m2 (square)
LUCKY_DIMON [66]

Answer:

A. 13m

Step-by-step explanation:

To find the area of a square you multiply Length by the Height. Since squares have equal length sides the number has to be the same for the length and the height.

13 x 13 = 169

\sqrt{169} = 13

4 0
3 years ago
Read 2 more answers
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