A steel pipe company recently developed a new pipe product for a customer. According to specifications, the pipe is supposed to have an average outside diameter of 2.00 inches with a standard deviation equal to 0.10 inch, and the distribution of outside diameters is to be normally distributed. Before going into full-scale production, the company selected a random sample of 30 sections of pipe from the initial test run, as shown in the accompanying table. Complete parts a and b below. Click the icon to view the data table. B. Ho: The pipe diameter is normally distributed with μ=2.00 and o=0.10. HA: The pipe diameter is not normally distributed with μ = 2.00 and a=0.10. OC. Ho: μ#2.00 HA: H=2.00 OD. Ho: μ=2.00 HA: μ#2.00 Find the observed frequency of each class. Observed Frequency 5 12 7 6 Class Under 1.9 1.9 to under 2.0 2.0 to under 2.1 2.1 and over The test statistic is x² = (Round to three decimal places as needed.) Data Table Diameter Diameter Pipe Section (inches) Pipe Section (inches) 2.05 1.96 2.13 1.89 2.07 1.99 90 1.89 1 2 3 1 4 5 G 6 7 。 8 0 9 10 11 11 12 12 13 14 15 2.06 2.06 210 2.19 201 2.01 2.06 2.06 1.98 1.95 1.91 2.11 2.02 2.11 Print 16 17 18 19 20 20 21 21 22 22 22 23 24 24 25 25 26 26 27 28 29 30 1.99 212 2.12 4.00 1.89 1.02 1.92 1.06 1.96 240 2.19 1.05 1.95 1.94 2.00 2.09 1.82 1.94 1.96 1.81 Done Full data set - X

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