A Company Manufactures U-100 Insulin Syringes Designed to Contain 1

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 meanμ and standard deviation σ= 0.05 ml. We randomly select 8 syringes and measure the volume of solution in each, and ask if the resulting data give evidence that the true population mean solution volume is not 1 ml. Here is the software output from a one-sample z test on the data collected:
Variable   N   Mean   StDev   SE   Mean   95%   CI   Z   P
Volumes   8 1.0175   0.0320   0.0177   (0.9829, 1.0521)   0.99   0.322
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What is the appropriate null hypothesis for this test?

A) H₀: μ= 0
B) H₀: μ= 1
C) H₀: μ= 1.0175
D) H₀: x̄= 1.0175