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3 years ago

Which problem is solved using this model?

Mathematics

1 answer:

Sonja [21]3 years ago

6 0

A because it start at 20 and divided 1/2 each time. And when you solved 2/ 1/2 , you get 4 and that is correct because you have 4 arrows.

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HELP ME WITH THIS IT IS REALLY HARD

SSSSS [86.1K]

Answer:

-2 1/8

<h2><em><u>Could I please have BRAINLIEST?</u></em></h2>

8 0

3 years ago

Read 2 more answers

Consider the following hypothesis test.H0:μ1−μ2=0 Ha:μ1−μ2≠0The following results are for two independent samples taken from the

Julli [10]

Answer:

a) $z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53$

b) $p_v =2*P(z$

c) Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

Step-by-step explanation:

Information given

$\bar X_{1}= 104$ represent the mean for 1

$\bar X_{2}= 106$ represent the mean for 2

$\sigma_{1}= 8.4$ represent the population standard deviation for 1

$\sigma_{2}= 7.6$ represent the population standard deviation for 2

$n_{1}=80$ sample size for the group 1

$n_{2}=70$ sample size for the group 2

z would represent the statistic

Hypothesis to test

We want to check if the two means for this case are equal or not, the system of hypothesis would be:

H0: $\mu_{1}=\mu_{2}$

H1: $\mu_{1} \neq \mu_{2}$

The statistic would be given by:

$z =\frac{\bar X_1-\bar X_2}{\sqrt{\frac{\sigma^2_1^2}{n_1} +\frac{\sigma^2_2^2}{n_2}}}=$ (1)

Part a

Replacing we got:

$z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53$

Part b

The p value would be given by this probability:

$p_v =2*P(z$

Part c

Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

6 0

3 years ago

SOME ONE PLEASE HELP !!!!

Andrei [34K]

x = 20 - -5 = 20 + 5 = 25

y = 16 - 1 = 15

7 0

3 years ago

What’s the answer please hurry up

kramer

Answer:

Step-by-step explanation:

you deleted my answer because u know u have an attitude

3 0

3 years ago

Read 2 more answers

Pamela’s age is three times Jiri’s age. The sum.of their ages is 48. What is jiris age

kap26 [50]

Answer:

Jiri is 12 years old

Step-by-step explanation:

To start off we need to make an equation. Since we know both of their ages add up to 48 and that Pamela's age is 3 times Jiri's age we can say x(Jiri's Age) + 3x(Pamela's age) =48 --> x+3x=48

Now we have the equation x+3x=48, and we need to solve it.

First combine like terms

4x=48

Now divide both sides by 4

x=12

And now since we are using Jiri's age as x we know Jiri is 12 years old.

5 0

3 years ago