Psychology statistics
for each of the following research scenarios, decide whether the design uses a related sample. if the design uses a related sample identify whether it uses matched samples or repeated samples.
1. you design a study to examine whether a group of anorexic women has higher intelligence than the general population, which has an average iq of 100 with a standard deviation of 15.
answer choices:
uses a related sample(matched samples)
does not use a related sample
uses a related sample (repeated measures)
2.suzanne thomas was interested in how alcoholics without social phobia. she matched alcoholics without social phobia to those with social phobia on several variables, including age and gender. she then queried participants in each group about the severity of their alcohol dependence.
answer choices:
uses a related sample(matched samples)
does not use a related sample
uses a related sample (repeated measures)

Time (minutes) amount of water (gallons) practice 1. jin fills up a 510-gallon pool in the backyard for her children. she fills it with the garden hose at a rate of 17 gallons per minute. after it is filled, she lets it sit for 30 minutes in order to let the water temperature rise. the children then get in and have fun for an hour. the pool loses about 5 gallon of water each minute due to their splashing and playing. at the end of the hour, they tear the pool while getting out, which causes a leak the pool then begins to lose water at a rate of 2 gallons per minute. a. complete the table to show the amount of water in the pool after each minute. b. create a graph to model the problem situation. include when the pool will be empty. c. write a piecewise function that models this problem situation. explain your reasoning for each piece of the function. d. identify the x- and y-intercept. explain what they mean in terms of the problem situation, atamantha a cul 80 100 120 150 200 ning, inc