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. 3 - A psychologist investigates the effect of instructions on the time required to solve a puzzle . Each of 20 volunteers is given the same puzzle to be solved as rapidly as possible . Subjects are randomly assigned , in equal numbers , to receive two different sets of instructions prior to the task . One group is told that the task is difficult ( X1 ) , and the other group is told that the task ( X2 ) . The score for each subject reflects the time in minutes required to solve puzzle . Test the null hypothesis at the 0.05 level of significance .
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Mathematics, 21.06.2019 16:20
Apolynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. if the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?
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Mathematics, 21.06.2019 21:30
Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle
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Mathematics, 21.06.2019 22:00
If tan2a=cot(a+60), find the value of a, where 2a is an acute angle
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Mathematics, 22.06.2019 01:50
Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle
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. 3 - A psychologist investigates the effect of instructions on the time required to solve a puzzle...
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