QUESTION 2 A random sample of 254 college students were interviewed. about their study habits. One question asked was "How many hours do you study in a typical
week?". The sample had a mean of 23.4 hrs and a standard deviation of 7.6 hrs.
What would be the margin of error for a 95% confidence interval for the typical weekly study time of all college students from this sample?
Round your answer to two decimal places.

Consider the line y = -3/-2 x +6. find the equation of the line that is perpendicular to this line and passes through the point (-9,-3). find the equation of the line that is parallel to this line and passes through the point (-9,-3).

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)