Anxiously-attached individuals in the general population tend to have low levels of satisfaction in their romantic relationships (μ = 10, σ = 5, positively skewed distribution). A therapist interested in increasing relationship satisfaction provides a week-long relaxation seminar to 11 anxious individuals. After completing the seminar, relationship satisfaction in the sample averages 12. What is the shape of the comparison distribution?

8.34% ( parabolic shape )

Explanation:

mean value ( μ ) = 10

std ( σ ) = 5

n = 11

simple average = 12

positively skewed distribution

Determine the shape of the comparison distribution

Note : The shape of the comparison distribution is dependent on the percentage of the scores that will fall above the Z-score since it is a positively skewed distribution

lets calculate the Z-score

Z = ( simple average - mean value ) / ( std / √ n )

  = ( 12 - 10 ) / ( 5 √ 11 )

  = 1.32

Next determine the percentage above Z -score

i.e. p(z>1.32) = 8.34% ( form z table )

attached below is the shape

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the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.