Can you help me how to make it a two step probelm?

Mathematics

2 answers:

VLD [36.1K]2 years ago

5 0

Answer:

look it up on Google or alexa or ask them

san4es73 [151]2 years ago

4 0

Answer: You can’t make it a two step problem.

Step-by-step explanation:

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Two random samples with sizes 100 and n are chosen from the populations with the means 85.6 and 82.1. They have standard deviati

Deffense [45]

Answer:

$SE= \sqrt{\frac{\sigma^2_1}{n_1}+\frac{\sigma^2_2}{n_2}}$

And for this case if we have the same sample size we got the minimum value when we have the higher value fo n for each one and for this case would be the answer:

b. 120

Step-by-step explanation:

For this case we have the following info given:

$n_1 = n_2 = 100$

$\mu_1 = 85.6$

$\mu_2 = 82.1$

$\sigma_1 =12.4$

$\sigma_2 = 8.9$

We assume that the variable of interest is the linear combination of the two means and for this case the standard error would be given by:

$SE= \sqrt{\frac{\sigma^2_1}{n_1}+\frac{\sigma^2_2}{n_2}}$

And for this case if we have the same sample size we got the minimum value when we have the higher value fo n for each one and for this case would be the answer:

b. 120

7 0

3 years ago

Can someone plss help ASAP

Elza [17]

Answer:

8.2.69 ≤ x ≤ 17.31

11. x-7.31 ≤ 10

12. x≤17.31

Let the amount in the other Piggybank be x.

If positive;

x-7.31 ≤ 10