Question

In: Statistics and Probability

A manufacturer has tested the time taken to manufacture a fixed number of working components, measuring...

A manufacturer has tested the time taken to manufacture a fixed number of
working components, measuring the times in units of 103 seconds. The
resulting data values are shown in Dataset as a frequency distribution.
Carry out an appropriate statistical test to determine if this data may be
said to have a normal distribution. Identify any questions around
identifying the number of degrees of freedom for the relevant test.

Groups Frequencies
300 to 305 10
305 to 310 13
310 to 315 35
315 to 320 77
320 to 325 77
325 to 330 36
330 to 335 13
335 to 340 10
340

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