. A cement product manufacturer is making capstones in a circular shape. The manager has taken a random sample of 17 capstones and measured their diameters in cm. The following information is available. [D, = 323.28, D = 7027.363. Carry out an appropriate statistical test on each of the two state- ments given here, using the information given. (b) The variance of the capstones is at least 0.5cm² . Explain why the manufacturer would wish to conduct the second test as it is set out here.

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1. A cement product manufacturer is making capstones in a circular
shape. The manager has taken a random sample of 17 capstones
and measured their diameters in cm. The following information is
available.
ED; = 323.28, D? = 7027.363.
Carry out an appropriate statistical test on each of the two state-
ments given here, using the information given.
(b) The variance of the capstones is at least 0.5cm² .
Explain why the manufacturer would wish to conduct the second
test as it is set out here.
Transcribed Image Text:1. A cement product manufacturer is making capstones in a circular shape. The manager has taken a random sample of 17 capstones and measured their diameters in cm. The following information is available. ED; = 323.28, D? = 7027.363. Carry out an appropriate statistical test on each of the two state- ments given here, using the information given. (b) The variance of the capstones is at least 0.5cm² . Explain why the manufacturer would wish to conduct the second test as it is set out here.
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