Question

An experiment is set up to study the weights of 35 mice after they are injected with a drug. The population mean is 23.50 grams with a standard deviation of 3.40 grams. The standard error of he sample is ___ (round off your answer to the nearest hundredth.)

Answer 1

Answer: 26.10

Explanation:

Answer 2

Standard Error Formula is
SE =
`(s)/( √(n) )}`

where:
SE = standard error
s = standard deviation
n = number of observations of the samples


so in the given, 35 is the sample size
3.40 grams is the standard deviation

SE =
`(3.4)/( √(35) )`
=
`(3.4)/( √(5.91660797831) )`
≈ 0.65