Effect size represents the degree to which two populations do not overlap. the less that two populations overlap, the larger the effect size will be. effect size for the t test for independent means is the difference between the population means divided by the standard deviation of the population of individuals. since the population means and population standard deviation are ▼ unknown, known, estimate them using the ▼ population mean sample means and the ▼ pooled sample standard deviation. the larger sample standard deviation. population standard deviation. the estimated effect size of this study is ▼ medium. large. small.

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!

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27 +27 or 27times 2=54

the diffrence is 0