Question: The mean time it takes a technician to resolve a software issue is 18 minutes with a standard deviation of 4.2 minutes. This information was

The mean time it takes a technician to resolve a software issue is 18 minutes with a standard deviation of 4.2 minutes. This information was obtained from a random sample of 10 monitored calls. A sample of 15 monitored calls revealed a mean time for a technician to resolve hardware problem was 15.5 minutes with a standard deviation of 3.9 minutes. Assume the populations are normally distributed with equal variances. At the 0.05 significance level, does it take longer to resolve software issues? Select the appropriate alternative hypothesis.

Hsoftware 2 Hhardware Hsoftware < uhardware Usoftware > hardware Hsoftware < Hhardware

Hsoftware 2 Hhardware Hsoftware < uhardware Usoftware > hardware Hsoftware < Hhardware Hsoftware + Hhardware

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