Ahardware store ordered 200 cans of wood stain in various shades. the written contract between the store and manufacturer provided that 100 cans of stain would be delivered on april 30, and the remaining 100 cans would be delivered on june 30. payment would be due at the time of each delivery. the first shipment arrived on april 30. sales of the stain were brisk, but 25 customers almost immediately returned their stain, complaining that it was not the color indicated on the can. the store owner called the manufacturer and informed it of the problem. the manufacturer truthfully told the owner that they had had a small problem with their labeling machine and a few cans in the store owner's lot must have been mislabeled before they caught the problem. the manufacturer offered to replace all 100 cans from the original order. the store owner refused the offer and told the manufacturer not to deliver the second lot, because he could no longer trust the manufacturer. the owner was very sensitive to the hardware store's good reputation, which he felt was harmed by this incident. if the manufacturer brings a claim of breach regarding the second shipment which was due on june 30, how will the court likely rule? a the buyer had the right to cancel the second shipment, because of legitimate fears that it would contain the same defects as the first shipment. b the buyer had the right to cancel the second shipment, because the first delivery was defective. c the buyer did not have the right to cancel the second shipment, because the defects in the first shipment did not substantially impair the value of the entire contract. d the buyer did not have the right to cancel the second shipment, because he failed to make a demand upon the manufacturer for adequate assurances that the second shipment would be free of defects.

Running and sleep. sufficient sleep is important for adolescents for both their neural and psychological development. despite this, daytıme sleepiness and poor physical and psychological functioning related to chronic sleep disturbances are common. there is a growing body of evidence that exercise is associated with both better sleep and improved psychological functioning sixty participants were recruited from a high school in northwesten switzerlandthey were randomly assigned to either a running group or a control group, 30 to each group the running group ran every moming for a little over 30 minutes on weekdays for a three-week period. all participants used a sleep log for subjective evaluation of sleep, and sleep was also objectively assessed at the beginning and end of the study using a sleep electroencephalographic device that measured quantities such as sleep efficiency and time spent in the four different sleep phases. running was found to have a positive impact on both objective and subjective measures of sleep functioning what are the explanatory variable(s) and the response variable(s)? (a) outline the design of the experiment (b) (c) here are some more details on the treatment and control groups. all participants arrived at school at 7 a.m., and the running group did two laps on the track and then ran cross countrv in groups of at least four people for 30 minutes the control group remained seated at the track, worked on horpework. and interacted with each other. when the runners returned, all participants prepared for school and ate a breaktast that was provided. iwhy do you think the experimenters had the control group arrive at 7 am interact withdassmates and have breaktast together? explain. do you think having the control eroup do these activities is important for the types of conclusion that can be reached? how?

Arecent poll of 500 residents in a large town found that only 36% were in favor of a proposed referendum to build a new high school. find the margin of error for this poll if we want 95% confidence in our estimate of the percentage of residents in favor of this proposed referendum.

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