According to a 2014 research study of national student engagement in the u. s., the average college student spends 17 hours per week studying. a professor believes that students at her college study less than 17 hours per week. the professor distributes a survey to a random sample of 80 students enrolled at the college. from her survey data the professor calculates that the mean number of hours per week spent studying for her sample is 15.6 hours per week with a standard deviation of 4.5 hours per week. the professor chooses a 5% level of significance. what can she conclude from her data?

Iam in need of a tutor for my son in the northern ky area. can anybody me out

Bryce drove 200 miles to his grandparents house this is 50 miles more than three times the distance to aunt lance a house what is the distance to hisaunt lance house?

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?