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Flura [38]
3 years ago
6

4' 9''+ 7'' the sum pleaseee

Mathematics
1 answer:
joja [24]3 years ago
5 0

Answer:

5'4" or 64 inches

Step-by-step explanation:

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A software company decided to conduct a survey on customer satisfaction. Out of 564 customers who participated in the online sur
nikklg [1K]

Answer:

z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8  

p_v =2*P(z  

Step-by-step explanation:

Information given

n=564 represent the sample selected

X=51 represent the number of people who rated the overall services as poor

\hat p=\frac{51}{564}=0.0904 estimated proportion of people who rated the overall services as poor  

p_o=0.1 is the value to compare

z would represent the statistic

Hypothsis to analyze

We want to analyze if the proportion of customers who would rate the overall car rental services as poor is 0.1, so then the system of hypothesis are:  

Null hypothesis:p=0.1  

Alternative hypothesis:p \neq 0.1  

The statistic for a one z test for a proportion is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8  

And the p value since we have a bilateral test is given b:

p_v =2*P(z  

3 0
3 years ago
Two punds of cheese cost 8.40. show the cost of 1,2,3,and 4 pumds of cheese. Is there a direct variation
larisa [96]

Answer: 1 = 4.20, 2 = 8.40 3 = 12.60 4 = 16.80

This is a direct variation.


Step-by-step explanation:


4 0
3 years ago
Offering around 20 points
givi [52]

Sarah

reason

she has the most consistent scores

4 0
3 years ago
The square prism has the same measurements as a square pyramid. How many times larger is the prism than the pyramid ?
Leno4ka [110]
Volume of Rectangle =  (Area of Base)(Height)
Volume of Square Pyramid = (1/3) (Area of Base)(Height)

The prism is 3 times larger than the pyramid
Answer: A
7 0
3 years ago
40 is 20% of x. If x is 80% of y, then what is the sum of x and y?
Tanzania [10]

40 is 20% of x

40 = .2 * x

40/.2 = x

x =200


x is 80% of y

x = .8 * y

200 = .8 *y

200/.8 = y

250 =y


x+y

200+250

450


5 0
3 years ago
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