Which expression is equivalent to RootIndex 4 StartRoot 144 a Superscript 12 Baseline b cubed EndRoot? Assume a greater-than-or-equal-to 0 and b greater-than-or-equal-to 0.
2 a cubed (RootIndex 4 StartRoot 9 b cubed EndRoot)
2 a Superscript 4 Baseline b (RootIndex 4 StartRoot 18 EndRoot)
6 a cubed (RootIndex 4 StartRoot 3 b cubed EndRoot)
12 a Superscript 6 Baseline b (RootIndex 4 StartRoot b EndRoot)

Anull hypothesis states that the difference between 8 hours of sleep and 3 hours of sleep has no effect on the number of pictures a student will remember during a picture memory interface test (pmit). examining the mit database, an extremely small t-value of 0.1611 is found. this t-value is much smaller than the smallest t-value on the chart for p-value reference. from this information we can: select one: a. accept the null hypothesis because the p-value obtained shows that the difference between the two groups being tested is not statistically significant b. accept the null hypothesis because the p-value obtained was statistically significant c. reject the null hypothesis because of the p-value obtained d. reject the null hypothesis because the data obtained is statistically significant