If the variance of the contents of cans of orange juice is significantly more than 0.003, the manager has to order to stop the filling machine. A sample of 26 cans of orange juice showed a standard deviation of 0.06 ounce.
Based on the sample and at the 0.05 level of significance, the filling machine should beA) stopped.
B) kept going.
C) upgraded.
D) downgraded.
Question 2
A consulting report that was recently submitted to a company indicated that a hypothesis test for a single population variance was conducted. The report indicated that the test statistic was 34.
79, the hypothesized variance was 345 and the sample variance 600. However, the report did not indicate what the sample size was. What was it?A) n = 100
B) Approximately n = 18
C) Approximately 21
D) Can't be determined without knowing what alpha is.
Example of variance documentation
How to manually find the mean, variance, and standard deviation for a set of numbers
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