Question

Question 7 2 pts At a water bottling facility, a technician is testing a bottle filling machine that is supposed to deliver 1000 milliliters of water. The technician dispenses 48 samples of water and determines the volume of each sample. The 48 samples have a mean volume of a=1001.1 mL. The machine is out of calibration if the mean volume differs from 1000 mL. The technician wants to perform a hypothesis test to determine whether the machine is out of calibration. The standard deviation of the dispensed volume is known to be o=62. Compute the value of the test statistic O 3.06 O 0.16 O 0.18 1.23

Answer 1

Answer:

$1589570256100_blob.png$= 1000,  $1589570256083_blob.png$ = 6.2

= 1001.1, n=48

T

formula for test statistics is

11 o/vn

$z = \frac{1001.1 - 1000}{6.2 / \sqrt{48}}$

z = 1.23

Answer = 1.23