SOLUTION: A restaurant chain regularly surveys its customers. On the basis of these surveys, the management of the chain claims that 75% of its customers rate the food as excellent. A consu

Question 1177033: A restaurant chain regularly surveys its customers. On the basis of these surveys, the management of the chain claims that 75% of its customers rate the food as excellent. A
consumer testing service wants to examine the claim by asking 460 customers to rate the food.
Seventy per cent rated the food as excellent. Does this support the management’s claim?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi
Ho:  p = .75
Ha:  p < .75
σ = 95%
n = 460  ,  x̄ = .70

 = -2.4766
p(-2.4766) = .0066
 Since this p-value is less than the level of significance (0.05), 
the decision is to reject the null hypothesis. 

Wish You the Best in your Studies.

RELATED QUESTIONS
I was curious if you can answer the following question for me. I have an answer, but I... (answered by ewatrrr)

A restaurant chain routinely surveys customers andamong other questions asks each... (answered by robertb)

Please help! I cannot figure this one out! I asked my teacher too and she gave me the... (answered by rothauserc)

The MacBurger restaurant chain claims that the waiting time of customers for service is... (answered by JBarnum)

2. The Mac Burger restaurant chain claims that the waiting time of customers for... (answered by Boreal)

A mall wants to determine if staying open for one additional hour on weekdays would... (answered by Edwin McCravy)

Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the... (answered by Fombitz)

Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the... (answered by stanbon)