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Degger [83]
3 years ago
12

Does anyone know how to finish this equation?

Mathematics
1 answer:
nikdorinn [45]3 years ago
6 0
Not sure what you mean?
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If you want to construct a 90% confidence interval, what critical value (z*) should you use? Group of answer choices 2.576 1.960
Rom4ik [11]

Answer:

For this case we know that the confidence level is 90% so then the significance level is \alpha=1-0.9 =0.1 and \alpha/2 =0.05. And we can find in the normal standard distribution a value who accumulates 0.5 of the area on each tail and we got:

z_{\alpha/2}= \pm 1.645

And the best option would be:

1.645

Step-by-step explanation:

We assume that the parameter of interest is \theta and we can assume that the distribution for this parameter is normally distributed so then the confidence interval assuming a two sided interval is given by:

\hat \theta \pm z_{\alpha/2} SE

Where \hat \theta represent the estimator for the parameter, SE the standard error and z_{\alpha/2} the critical value.

For this case we know that the confidence level is 90% so then the significance level is \alpha=1-0.9 =0.1 and \alpha/2 =0.05. And we can find in the normal standard distribution a value who accumulates 0.5 of the area on each tail and we got:

z_{\alpha/2}= \pm 1.645

And the best option would be:

1.645

6 0
3 years ago
I WILL GIVE BRAINLIEST!!!!! HELP!!!!!!!!!!!!!!!!!!!!
Dvinal [7]

Answer:

448.50

Step-by-step explanation:

299/2 = 149.50

then you take 149.50* 3 to get your answer and that = 448.50

6 0
3 years ago
What is the surface area of the rectangular prism? <br><br> PLSSS HELP GUYS I NEED HELP ASAP
tatyana61 [14]

Answer:

348 ignore this eoendndisiwjd

5 0
3 years ago
Write the equation in slope-intercept form of the line that passes through (3.5) and (-2, 7). Your answer
Dima020 [189]

Answer:

y= -2/5x+6.2

Step-by-step explanation:

that should be the correct answer

5 0
3 years ago
After arguing for two weeks, Nora convinced her parents to have her birthday party at FlyZone trampoline park. As soon as she ge
raketka [301]

Answer:

t = 1 1/4 hours

Step-by-step explanation:

Lets first make an equation to represent the situation. t + 1/2 = 1 3/4

Because we cant add fractions with different denominators we have to change 1/2 to 2/4.

Next, we need to isolate t. Subtract 2/4 from both sides of the equation to get 1 1/4.

t = 1 1/4.

8 0
3 years ago
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