Reaction time was observed for touchscreen interaction with a computer and haptic (e.g., button) interaction with...
Reaction time was observed for touchscreen interaction with a computer and haptic (e.g., button) interaction with a computer to identify if there was a difference in response times for the two technologies. Fifteen students used the touchscreen computers, and fifteen students used the haptic computers. The sample mean and standard deviation for the touchscreen computer was 4.7 and 4, respectively. The sample mean and standard deviation for the haptic computer was 7.8 and 6.25, respectively. Assume that the variances are equal between the populations. Test the hypothesis. Use a=0.05. What is the p-value?
Homework Answers
as p value is less than 0.05 level we reject null hypothesis and conclude that there is a difference in response times for the two technologies
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Reaction time was observed for touchscreen interaction with a
computer and haptic (e.g., button) interaction with...
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A study was designed to compare the attitudes of two groups of nursing students towards computers....
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A study was designed to compare the attitudes of two groups of nursing students towards computers....
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A study was designed to compare the attitudes of two groups of nursing students towards computers....
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We want to investigate the diameter of steel rods that are manufactured on two different sites....
We want to investigate the diameter of steel rods that are
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samples of sizes n1 = n2 = 15. The sample means are X1 = 6.2, X2 =
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manufactured on two different sites. We pick two different random
samples of sizes n1 = n2 = 15. The sample means are X1 = 6.2, X2 =
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The university data center has two main computers. The center wants to examine whether computer 1 is receiving tasks that require processing times comparable to those of computer 2. A random sample of 9 processing times from computer I showed a mean of 52 seconds with a standard deviation of 19 seconds, while a random sample of 14 processing times from computer 2 (chosen independently of those for computer 1) showed a mean of 56 seconds with a standard deviation...
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