Acereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled.
each box of cereal is supposed to contain 13 ounces of cereal.
a random sample of 31 boxes is tested.
the average weight is 12.58 ounces and the standard deviation is 0.25 ounces.

calculate a confidence interval to test the hypothesis at a=.10

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Which of the following vectors are orthogonal to (2,1)? check all that apply