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3 years ago

Please give the answer fast .I will mark you as brainliest.

Mathematics

1 answer:

DochEvi [55]3 years ago

8 0

Answer:

1. 5 x3 x1

2. 5

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

What is -10=k+6 please show work thank you

Tresset [83]

Answer:

k=-16

Step-by-step explanation:

-10=k+6

subtract 6 both both sides to isolate the variable

-16=k

Happy Holidays!!

7 0

2 years ago

Read 2 more answers

Find the Mean of the following set of data. (Round to the

Vikentia [17]

Answer:

2.75

Step-by-step explanation:

to get the mean all you have to is add all the numbers up then divide by how numbers there are. so 3e is what u get when u add them up then divide by 12 and u get 2.75

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3 years ago

Twice a first number decreased by a second number is 22. The first number increased by four times the second number is - 7.

AnnZ [28]

Answer:

Step-by-step explanation:

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2 years ago

Halla dos pares de enteros cuya suma sea -6

SCORPION-xisa [38]

Answer:

0 y -6 o 1 y -7

Step-by-step explanation:

7 0

2 years ago

Please give the answer fast .I will mark you as brainliest.​​

Please give the answer fast .I will mark you as brainliest.