Anew concrete mix is being designed to provide adequate compressive strength for concrete blocks. the specification for a particular application calls for the blocks to have a mean compressive strength μ greater than 1350 kpa. a sample of 100 blocks is produced and tested. their mean compressive strength is 1358 kpa and their standard deviation is 75 kpa. a test is made of h0 : µ ≤ 1350 versus h1 : µ > 1350.] a) do you believe it is plausible that the blocks do not meet the specification, or are you convinced that they do? explain your reasoning by carrying out the appropriate hypothesis test.

b) if a sample of 10 blocks is produced and tested with their mean compressive strength at 1372 kpa and their standard deviation at 68 kpa. find the p-value based on the same hypothesis.

125 yards

step-by-step explanation:

i take 75 plus 50.

table a is wierd

step-by-step explanation:

6*f

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!

step-by-step explanation: