Olivia earns $8.50 per hour for babysitting her brother. She also earns a weekly bonus of $12 if she helps with Last week, Olivia helped with the laundry and earned a total of $139.50 for h hours of babysitting. Based on this situation,
which statement is true?
A. Olivia babysat for a total of 20.5 hours.
B. Olivia babysat for a total of 15 hours.
C. Olivia babysat for a total of 7 hours.
D. Olivia babysat for a total of 8.5 hours.

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