13.4 We are interested in whether industrial firms or service firms spend more money on innovation. Studies
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13.4 We are interested in whether industrial firms or service firms spend more money on innovation. Studies and theoretical considerations indicate that industrial firms spend more. Perform the test at the 1% significance level, considering all relevant steps. The following values are available: xi = 4.71,si = 3.47, ni = 34, xs =
4.62,ss = 3.38, ns = 66.
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