(b) Fatima starts a phone call at 18:32 The phone call finishes at 19:16
1 answer:
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Answer:
The value of the test statistic is -3.14.
Step-by-step explanation:
Test statistic:
In which X is the sample mean, is the expected value,
is the standard deviation and n is the size of the sample.
A company advertises that its cans of caviar each contain 100 g of their product.
This means that
They calculate a sample mean weight of 99 g and a sample standard deviation of 0.9 g. Sample of 8 cans.
This means that
So the test statistic will be given by:
The value of the test statistic is -3.14.