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2 years ago

Find the distance between the two points.(2,5), (-4,7)

Mathematics

1 answer:

yuradex [85]2 years ago

7 0

Answer:

distance bw 2,5 is 2 digits

and -4,7 is 11 digits

Step-by-step explanation:

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A group of researchers wants to know whether men are more likely than women to contract a novel coronavirus. They surveyed two r

olasank [31]

Answer:

Test statistic Z= 0.13008 < 1.96 at 0.10 level of significance

null hypothesis is accepted

There is no difference proportion of positive tests among men is different from the proportion of positive tests among women

Step-by-step explanation:

<em>Step(I)</em>:-

Given surveyed two random samples of 390 men and 360 women who were tested

first sample proportion

$p_{1} = \frac{360}{390} = 0.9230$

second sample proportion

$p_{2} = \frac{47}{52} = 0.9038$

Step(ii):-

Null hypothesis : H₀ : There is no difference proportion of positive tests among men is different from the proportion of positive tests among women

Alternative Hypothesis:-

There is difference between proportion of positive tests among men is different from the proportion of positive tests among women

$Z = \frac{p_{1}- p_{2} }{\sqrt{PQ(\frac{1}{n_{1} }+\frac{1}{n_{2} } } }$

where

$P = \frac{n_{1}p_{1} +n_{2} p_{2} }{n_{1}+n_{2} }$

P = 0.920

$Z= \frac{0.9230-0.9038}{\sqrt{0.920 X0.08(\frac{1}{390}+\frac{1}{52} } )}$

Test statistic Z = 0.13008

Level of significance = 0.10

The critical value Z₀.₁₀ = 1.645

Test statistic Z=0.13008 < 1.645 at 0.1 level of significance

Null hypothesis is accepted

There is no difference proportion of positive tests among men is different from the proportion of positive tests among women

7 0

3 years ago

SOMEONEEEE HELLPP ME OUTTTT!!!!

Gnoma [55]

49 degree is the answer
tanø = 46/40
= 1.15
Ø = 49 degree

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3 years ago

A boy needs to grill 13 pounds of meat for a cookout. Determine the Maximum cost per pound that he can afford if he wants to spe

marissa [1.9K]

Answer:

$5.38 per pound

Step-by-step explanation:

70/13=5.384615

5.38x13=69.94

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3 years ago

Marco has 2 bags of flour with 6

zlopas [31]

Answer:

2 batches

Step-by-step explanation:

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2 years ago

What’s the answer? PLEASE ! NO LINKS. thanks !

Art [367]

Answer:

84 $cm^{2}$

Step-by-step explanation:

find the area of each shape and add them together

5 0

2 years ago

Find the distance between the two points.(2,5), (-4,7)​

Find the distance between the two points.(2,5), (-4,7)