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Brut [27]
3 years ago
10

How do you prove this??? I tried and i didn't get the answers

Mathematics
1 answer:
Sonbull [250]3 years ago
8 0
The equation is correct. There's nothing wrong with it.
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two trains depart the station in different directions. their paths are at a 90-degree angle from one another, as shown in the fo
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8125t^2-11250t^2+5625 greater than or equal to > 100

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How can you find the length of the diameter if you only know the radius
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Radius into radius .You should know half of diameter is radius.
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Please help ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.
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Since an instant replay system for tennis was introduced at a major​ tournament, men challenged 1406 referee​ calls, with the re
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Answer:

Step-by-step explanation:

This is a test of 2 population proportions. Let 1 and 2 be the subscript for men and women players. The population proportions of men and women challenges for calls would be p1 and p2

P1 - P2 = difference in the proportion of men and women challenges for calls.

The null hypothesis is

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p1 - p2 = 0

The alternative hypothesis is

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p1 - p2 ≠ 0

it is a two tailed test

Sample proportion = x/n

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x represents number of success(number of complaints)

n represents number of samples

For old dough

x1 = 416

n1 = 1406

P1 = 416/1406 = 0.3

For new dough,

x2 = 217

n2 = 778

P2 = 217/778 = 0.28

The pooled proportion, pc is

pc = (x1 + x2)/(n1 + n2)

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1 - pc = 1 - 0.29 = 0.71

z = (P1 - P2)/√pc(1 - pc)(1/n1 + 1/n2)

z = (0.3 - 0.28)/√(0.29)(0.71)(1/1406 + 1/778) = 0.02/√0.00553857907

z = 0.99

Since it is a two tailed test, the curve is symmetrical. We will look at the area in both tails. Since it is showing in one tail only, we would double the area

From the normal distribution table, the area below the test z score to the left of 0.99 is 1 - 0.84 = 0.16

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p = 0.16 × 2 = 0.32

Since 0.1 < 0.5, we would accept the null hypothesis.

p value = 0.337

Since 0.05 < 0.32, we would accept the null hypothesis

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3 years ago
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