Answer to Question #128750 in Statistics and Probability for maham

Question

Identify left, right, or two-tailed test type in following
i. The 2011 average service time for Fast Fatz Burgers was 56 seconds. The store manager claims
that the 2012 average is more than 5 seconds faster.
ii. Speedy Solutions is a delivery company that claims all deliveries average less than 72 hours.
iii. At least 60% of indians vote in presidential elections.
iv. Chance of developing heart attack is under 50% for women.

Answer 1

i) right

ii) left

iii) right

IV) left