## Answers for Applied Statistics: Suppose that the Thickness of a Car Tyre

June 30, 2020

**Answers for Applied Statistics: Suppose that the Thickness of a Car Tyre for $3 Only** **(Instant Download)**

Suppose that the thickness of a car tyre is critical and measurement of the thickness of a random sample of 18 tyre have the variance of 0.68 cm it is assumed that the production is under control of the variation of the thickness is given by a variance not greater than 0.36 cm assuming that the population is normally distributed test the null hypothesis which says population variance is equal to 0.36 cm against the alternative hypothesis which says population is greater than 0.36 at the 5% level of significance.

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