The mean height of all college students in South Africa is 163cm and the standard deviation is 15cm. A random sample of 100 students is taken. Find the probability that the mean height of this sample, is greater than 160cm.
A.0.9772
B.0.0228
C.0.5793
D.0.3451​

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?