Mathematics, 07.12.2019 04:31 iixyloa
Apublishing company wanted to test whether typing speed differs when using word processor a or word processor b. a random sample of 25 typists was selected and the typing speeds (in words per minute) were recorded for each secretary when using word processor a and then when using word processor b. (which word processor was used first was determined for each typist by a coin flip).based on the collected data, a 95% confidence interval for μd, the mean difference (word processor a - word processor b) was found to be (2.5, 7.8).the appropriate hypotheses for testing whether the typing speeds differ when using word processor a or word processor b is the two-sided test: h_0: μ_d = 0, h_a: μ_d ≠ 0based on this confidence interval for μd, what would be your conclusion (at the .05 significance level)? explain.
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Apublishing company wanted to test whether typing speed differs when using word processor a or word...
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