The same poll of 1,021 US adults showed that 75% believe that development of nuclear weapons by Iran is also a critical threat to US vital interests in the next 10 years. The margin of error for this estimate is also ±4 percentage points. A member of the US House Committee on Appropriations is satisfied with 95% confidence, but she wants a smaller margin of error than ±4 percentage points to be able to distinguish which threat is more concerning to Americans. Which of the following modifications will achieve the smaller margin of error at 95% confidence? a. change the sampling method
b. decrease in sample size
c. increase in sample size

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!

my dear correct answer is option number 3

150

step-by-step explanation: