Can moving their hands help children learn math? This question was investigated in a study. Eighty-five children in the third and fourth grades who did not answer any questions correctly on a test with six problems of the form 3 + 2 + 8 = ___ + 8 were participants in an experiment. The children were randomly assigned to either a no-gesture group or a gesture group. All the children were given a lesson on how to solve problems of this form using the strategy of trying to make both sides of the equation equal.

Impact of gesture learning on students performance (correct answers) can  be done through Hypothesis Testing

Explanation:

The hypothesis test is to check that impact of learning with gesture, increases or not the average number of correct answers by students.

Let : Group 1 = No gesture ; Group 2 = Gesture

Group 1 : no. = n1 , mean = u1 , standard deviation = σ1

Group 2 : no. = n2 , mean = u2 , standard deviation = σ2

Null Hypothesis [H0] : Mean (Group1) = Mean (Group2)

Alternate Hypothesis [H2] : Mean (Group 1) < Mean (Group 2)

Let level of significance α = 5% = 0.05

Test t statistic = ( u1 - u2 )

                    √ [ σ / n1 + σ / n2 ]

If calculated value of this 't' > tabulated 't' i.e usually 1.96 at α = 0.05 or if p value < 0.05 :  We reject the null hypothesis & conclude that Mean (Group 1) < Mean (Group 2). This implies that theory learning with gesture implies higher average correct responses

If calculated value of this 't' < tabulated 't' i.e usually 1.96 at α = 0.05 or if p value > 0.05 :  We don't reject the null hypothesis & conclude that Mean (Group 1) = Mean (Group 2). This implies that theory learning with gesture doesn't imply higher average correct answers

this is an outline for the decisions that frankie is going to make

opportunity cost

willingness to buy

price or quality

of course, there could be many economic strategies that should be considered important while making decision. opportunity cost is the foremost significant factor while considering any economic option. when you buy something, you should know how much you are forgoing for this product. indeed, you could buy something different with this measure if you changed your mind. willingness to buy shows how much surplus you are earning while making a decision. it is important because it shows you buy what you want or you buy because you have only limited amount of money. the price or quality can be considered as a general economic option that we are applying while buying something. when you buy something, price or quality could be one of the options. indeed, they define the characteristics of the product.    

mark brainliest!

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )