The Computer Anxiety Rating Scale (CARS) measures an individual\'s level of assu

Question

The Computer Anxiety Rating Scale (CARS) measures an individual's level of assume that the population standard deviations are equal. Use a 0.01 significance leve, and test the claim that the mean anxiety for male is equal to the mean anicty for female. The data are given below Male: n-100, sample mean 40.3, sample standard deviation-13.5 Female: n 72, sample mean 36.8, sample standard deviation-9.4 that population 1 are males and population 2 are females. Answer questions 6-8 7. What is the test statistic and what is the p-value? (Use STATCRUNCH) a) T-3.5, P-value-0.0004 b) T-6.79, P-value-1.42E-09 c) T-2.00, P-value-0.024 d T-2.00, P-value-0.048

Explanation / Answer

Test statistic = T= ( 40.3 - 36.8 ) / ( ( 13.52 / 100 ) + ( 9.42 / 72 ) )0.5

= 2.00

P-value = P( t > 2.00) = 0.048

Correct option : d ) T = 2.00 , P-value = 0.048

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