The lumen output was determined for each of i = 3 different brands of 60-watt soft-white lightbulbs, with j = 8 bulbs of each brand tested. the sums of squares were computed as sst r = 591.2 and sse = 4773.3. state the hypotheses of interest, and use the f test of anova (at α = 0.05) to decide whether there are any differences in true average lumen outputs among the three brands for this type of bulb.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Needmax 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.

What is the point slope form of a line with slope -5 that contains point (2,-1)