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Mashcka [7]
2 years ago
14

Please help me I need to pass this class

Mathematics
1 answer:
Vladimir [108]2 years ago
3 0
It’s 56 degrees. All the outside values equal 360 so you make them equal to that to solve for x and you get x=18. Then you solve for C and get 124. Then subtract 180-124 for DCE and you get 56
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A set of average city temperatures in october are normally distributed with a mean of 20.6°C and a standard deviation of 2°C. wh
vova2212 [387]

Answer:

0.4032

Step-by-step explanation:

8 0
3 years ago
Question 3 A study was performed to determine whether men and women differ in their repeatability in assembling components on pr
Fed [463]

Answer:

There is no sufficient evidence to support the claim that men and women differ in repeatability for this assembly task

Step-by-step explanation:

Given

Let subscript 1 represent men and 2 represent women, respectively.

n_1 = 25

n_2 = 21

s_1 = 0.98

s_2 = 1.02

\alpha = 0.02

Required

Determine if here is enough evidence

First, we need to state the hypotheses

H_o: \sigma_1^2 = \sigma_2^2

H_1: \sigma_1^2 \ne \sigma_2^2

Next, calculate the test statistic using:

F = \frac{s_1^2}{s_2^2}

F = \frac{0.98^2}{1.02^2}

F = 0.923

Calculate the rejection region;

But first, calculate the degrees of freedom

df_1 =n_1 - 1

df_1 =25 - 1

df_1 =24

df_2 = n_2 -1

df_2 = 21 - 1

df_2 = 20

Using the F Distribution:  table

c = \frac{\alpha}{2}

c = \frac{0.02}{2}

c = 0.01

At 0.01 level (check row 20 and column 24), the critical value is:

<em></em>f_{0.01,24,20} = 2.86<em> --- the upper bound</em>

At 0.01 level (check row 24 and column 20), the critical value is:

f_{0.01,20,24} = 2.74

Calculate the inverse F distribution.

f_{0.99,20,24} = \frac{1}{f_{0.01,20,24}} = \frac{1}{2.74} =0.365 ---- the lower bound

The rejection region is then represented as:

0.365 < Test\ Statistic < 2.86

If the test statistic falls within this region, then the null hypothesis is rejected

F = 0.923 --- Test Statistic

0.365 < 0.923 < 2.86

<em>The above inequality is true; so, the null hypothesis is rejected.</em>

<em>This implies that, there is no sufficient evidence.</em>

7 0
3 years ago
What is the slope of the line graphed on the coordinate plane?
lina2011 [118]

Answer:

18*

slope is 18  degrees.



6 0
3 years ago
Read 2 more answers
I WILL PICK THE BRAINLIEST FOR WHOEVER HAS THE CORRECT ANSWER!
mart [117]
1. 15

2.150


Prizes you need 1 for every 10 entrees so the difference is 1prize per 10Entrees
150 entrees is what the graph needs to show and /10= 15

7 0
3 years ago
There are 5 red marbles and 7 blue marbles in a bag What is the ratio of blue marbles to red marbles?
mash [69]
Correct Answer would be: 5/7
6 0
2 years ago
Read 2 more answers
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