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ss7ja [257]
3 years ago
12

Consider these functions: f(x) = x + 1 g(x)= 2/x

Mathematics
1 answer:
kow [346]3 years ago
3 0

Answer:

its letter A.

\frac{2}{x + 1}

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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
2 years ago
the food stand at the zoo so 2514 lb of hamburger last month but average cost of a pound of hamburger is $2 Germany's estimates
tiny-mole [99]
About 6,00 dollars worth of hamburger was sold last month
5 0
3 years ago
How do I solve 6+x/3=16
balandron [24]

Answer: x=30

Step-by-step explanation:

1.Subtract 6 from both sides of the equation

2.Simplify

3.Multiply all terms by the same value to eliminate fraction denominators

4.Simplify

7 0
2 years ago
Seven out of 13 students that apply to Biglarge University will get accepted. If
lawyer [7]

Answer:

6032

Step-by-step explanation:

7 out of 13 are accepted, so in total 0.538 % is accepted.

So 3248 / 0.538 = 6032 students applied.

5 0
3 years ago
Original price: $66; Markup: 20% The retail price is ?
andrezito [222]

Answer:

$79.20

Step-by-step explanation:

20% of $66 = $13.20

$66 + $13.20 = $79.20

4 0
3 years ago
Read 2 more answers
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