macmillanhighered.com Delivery in Chicago - Postmates On-Demand Deli NOTE: The N
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macmillanhighered.com Delivery in Chicago - Postmates On-Demand Deli NOTE: The Numerical Values In This Problem Have Yahoo Mail Done HW18 2. NOTE: The numerical values in this problem have been modified for testing purposes. Some individuals have the ability to recall accurately vast amounts of autobiographical information without mnemonic tricks or extra practice. This ability is called HSAM, for Highly Superior Autobiographical Memory. A study recruited adults with confirmed HSAM and control individuals of similar age without HSAM. All study participants were given a battery of cognitive and behavioral tests in the hope of finding out how this extraordinary ability works. Here are the participants' results for a verbal association test Intervention 16.6 5.6 -4.1 9.9 5.5 3.6 -0.1 2.2 9.5 5.1 3.5 7.9 -5 2.8 0.6 3.2 -6.9 -4.8 2.2 -6.5 -4.4 1.8 1.2 5.4 6.1 4.4 1.8 1.2 5.8 14.8 11.9 5.6 5.5 3.3 1.2 1.8 6.1 0.2 0.2 2.5 4.2 6 8.3 12.1 2.8 0.1 10.3 2.8 5.1 Control 7.1 1.8 8.5 6.7 6.1 4.8 4.6 4.5 2.8 1.6 5.1 (a) Calculate (±0.001) = | XC (±0.001)- 51(±0.001)-1 sc (20.001) SE (±0.001) = 1 (±0.001) df (20.1) = P (20.001 (Use software)) . (b) Is there strong evidence that obese children receiving food counseling gain less weight over a 15-week period? We test: Remaining: 2:27:00 Start: 9:31 PMExplanation / Answer
(a) xI = -2.413
xC = 3.367
sI = 5.228
sC = 4.279
Pooled standrd deviation Sp = [{(n1 -1)s12 + (n2 -1)s22}/ (n1 + n2 -2)] = 4.956
SE = sp * sqrt (1/n1 + 1/n2) = 4.956 * sqrt (1/53 + 1/24) = 1.219
t = (xI - xC)/ SE = ( -2.413 - 3.367)/ 1.219 = -4.740
dF = 75
P - value = 0.000
(b) We test
H0 : I = C
Ha : I < C
Here as p - value is less than 0.05 so we shall reject the null hypothesis and can conclude that there is strong evidence.
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