Chapter 12

# Chapter 12 - range b s M t critical t critical t critical s...

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Name: Ashley Sprotberry Class: PSY 363 Please be brief with your answers Chapter : 12 Question 1 The purpose of hypotheiss testing is to determine whether or not ther is a treatment effect. 2 It is unreasonable to use estimation after the null hypothesis is accepted because that mea is what estimation measures. 3 a narrows the interval b widens the interval c widens the interval 4 estimation/hypothesis independent/repeated a hypothesis x b estimation x c hypothesis x d estimation x 5 a 3.1 b 2.07-4.13 6 n M s 9 46 6 2 a 80% range 1.4 43.21 48.79 b 90% range 1.86 46 49.72 c 95% range 2.31 41.39 50.61 d The greater the percentage interval the greater the confidence interval. 7 Point estimate = 15.3 Interval estimate = 12.88 - 17.72 Note: you may not need all of the variables below for every problem 8 μ n M SS 81 25 87 1536 64 1.6 a 6 points higher b range 2.06 83.7 90.3 9 a interval would decrease b interval would increase 10 μ n M SS a point estimate

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Unformatted text preview: range b s M t critical t critical t critical s 2 s M t critical s 2 s M t critical 12 girls boys a point estimate n 9 16 boys M 40 95 range SS 1152 2160 b point estimate girls range c point estimate difference range 14 a point estimate no change change n M b range SS c zero is not included in the range so a difference is likely 16 a point estimate firm weak n M b range SS 18 a point estimate groups indiv n M b range SS 20 a point estimate b n SS range t critical s 2 s M s p 2 t critical s (m1-M2) t critical t critical s p 2 s (m1-M2) t critical s p 2 s (m1-m2) t critical s p 2 s (m1-m2) M D s 2 s MD t critical 22 a point estimate b n s range M D s MD t critical . Estimation is used to show effect size. ans there is not treatment effect and that...
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## This homework help was uploaded on 04/18/2008 for the course PSY 363 taught by Professor Barron during the Winter '08 term at Grand Canyon.

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Chapter 12 - range b s M t critical t critical t critical s...

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