Question

Alocal deli chain advertises that its "heart healthy" sandvwich contains a mere 10 fat grams. To test the deli chain's claim, a nutitionist selected a random sample of 41 heart-healthry sandwiches
The sample yielded ? = l1 grams and s= 1.8 gams. Assuming dis unknown, which inferential statistical test is most appropriate for this situation?

Answer 1

Answer:

Given Data

Here we want to test

Given , sample size n = 41

= 11 grams

s = 1.8 grams

Here population standard deviation is not known . i,e it is unknown.

We know , if population standard deviation is known then we use z test and if population standard deviation is unknown the use t test.

Also , hence only one population.

we have to use one sample t test.

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