An educational psychologist would like to determine whether access to computers has an effect on grades for high school students. One group of n = 16 students has
home room each day in a computer classroom in which each student has a computer. A comparison group of n = 16 students has home room in a traditional
classroom. At the end of the school year, the average grade is recorded for each
student. The data are as follows:
Computer Traditional
M = 86 M = 82.5
SS = 1005 SS = 1155
a. Is there a significant difference between the two groups? Use a two-tailed test
with a = .05.
b. Compute Cohen's d to measure the size of the difference.
c. Write a sentence that demonstrates how the outcome of the hypothesis test and
the measure of effect size would appear in a research report.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!

he can buy 4lbs. of live bait and 1lbs of natural bait

step-by-step explanation: