Mathematics, 26.11.2019 22:31 john092103
Many smartphones, especially those of for exceptionally poor battery life. battery life between c razr max averages 20 h mary use is interne hours for talk time raised as to whether the variance talk time. sample data showing battery hours of use for the two applications follows. the lte-enabled persuasion, have earned a bad rap harges for the motorola droid ours when the primary use is talk time and 7 hours when the pri- t applications (the wall street journal, march 7,2012). since the mean usage is greater than the mean hours for internet usage, the question was n hours of usage is also greater when the primary use is me primary use: talking 35.8 22.2 4.0 32.6 8.5 42.5 8.0 3.8 30.0 12.8 10.3 35.5 primary use: internet 1.9 9.9 1.0 15.2 4.0 4.7 14.0 12.516.4 5.4 a. formulate hypotheses about the two population variances that can be used to determine if the population variance in battery hours of use is greater for the talk time application what are the standard deviations of battery hours of use for the two samples? conduct the hypothesis test and compute the p-value. using a.05 level of significance, what is your conclusion? b. c.
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Many smartphones, especially those of for exceptionally poor battery life. battery life between c ra...
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