Stats 250 W12 Sunday Mar 25 Exam 2 Review Solutions

Thefollowingspssoutputwasprovided a the hypotheses

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Unformatted text preview: eries (1 = cadmium, 2 = hydride) as to “talking time” (number of minutes before recharging), independent random samples of batteries for each battery type were tested in hopes that the average talking time for the new hydride battery was longer than for the old cadmium type. The following SPSS output was provided. a. The hypotheses will be about 1 and 2. The null hypothesis is given below. Provide the appropriate alternative hypothesis and a complete definition for 1. H0: 1 = 2 Ha: ____m1 < m2 _____________ where 1 = the population mean (or average) talking time for (all) cell phones with a cadmium batteries Problem 5 Continued: b. The research assistant who was generating the SPSS output created the three Q‐Q plots: Plot 1 was a QQ plot of the observations for the Nickel batteries, P...
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