A Company Manufactures U-100 Insulin Syringes Designed to Contain 1 $$\begin{array} { | l | l | l | l | l | l | l | l | } \hline 1.05 & 1.04 & 1.06 & 1.01 & 0.98 & 0.98 & 1.03 & 0.99 \\\hline\end{array}$$

Multiple Choice

A company manufactures U-100 insulin syringes designed to contain 1 milliliter (ml) of a solution containing insulin. The actual distribution of solution volumes in these syringes is Normal, with mean? and standard deviation ?= 0.05 ml. We randomly select 8 syringes and measure the volume of solution in each. The results of these 8 measurements (in ml) are as follows:
$$\begin{array} { | l | l | l | l | l | l | l | l | } \hline 1.05 & 1.04 & 1.06 & 1.01 & 0.98 & 0.98 & 1.03 & 0.99 \\\hline\end{array}$$ Do these data give evidence that the true population mean solution volume is not 1 m1? What is the test statistic for this hypothesis test?

A) z = 3.97
B) z = 1.02
C) z = 0.99
D) z = 0.32