i need help in this one

[Calado99]

A study carried out on the level of satisfaction of
customers of two fast food restaurants (A and B)
revealed that, out of 500 respondents from each restaurant, 72%
and 68% are satisfied with the service provided.

a) Check if the proportion of satisfied customers
of restaurant A is significantly different from
proportion of satisfied restaurant customers B.
Use a confidence interval with a level of
significance of 0.05.

b) To conclude that, for restaurant A, 70% of
customers are satisfied with the service provided
for a significance level of 0.01? Use
a hypothesis test.

 

[Deleted member 4993]

A study carried out on the level of satisfaction of
customers of two fast food restaurants (A and B)
revealed that, out of 500 respondents from each restaurant, 72%
and 68% are satisfied with the service provided.

a) Check if the proportion of satisfied customers
of restaurant A is significantly different from
proportion of satisfied restaurant customers B.
Use a confidence interval with a level of
significance of 0.05.

b) To conclude that, for restaurant A, 70% of
customers are satisfied with the service provided
for a significance level of 0.01? Use
a hypothesis test.

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