A survey of pet owners found that on average, they spend $1,225 annually per pet, with a standard deviation of $275. Between
which two amounts would you expect 95% of the survey's respondents to spend annually per pet if the sample is
approximately normal and comes from a normally distributed population?
$675 and $1,500
$675 and $1,775
$950 and $1,500
$950 and $1,775

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125