1. (0.50 point) I hypothesized that girls in my class have the same blood pressure levels as boys. The probability value for my null hypothesis was 0.15. So I conclude that the blood pressures of the girls were higher than boys’. Which kind of mistake did I make?
a. Type I error
Decide if the probability described is a subjective (personal) probability or a relative frequency probability: A quarter is flipped 2000 times and results in 500 heads. The 25% (500/2000) chance of heads is a
A) subjective probability.
B) relative frequency probability.
Points Earned: 1.0/1.0
True or False. Justify for full credit. (25 pts)
(a) The normal distribution curve is always symmetric to its mean.
True . this is because the mean, median and mode all lie about the same position.
(b) If the variance from a data set is zero, then all the observations in this data set are identical.
True. The variance is a measure of dispersion from the mean.So if the d...