Thread: Urgently Need help to solve 2 problems.

1. Urgently Need help to solve 2 problems.

I need help to solve following problem. i will be very thankful for this act of kindness.

Problem 1:

Given measurements in four samples that follow, can we conclude that they come from the population having the same mean value. use the 0.01 level significance.
SAMPLE 1: 16, 21, 24, 28, 29
SAMPLE 2: 29, 18, 20, 19, 30, 21
SAMPLE 3: 14, 15, 21, 19, 28, 17
SAMPLE 4: 21, 28, 20, 22, 18

Problem 2:

Fuel costs are important to profitability in air line business. A small regional carrier has been has been operating three types of air craft and has collected the following cost data from its 14 planes, expressed as fuel cost (in cents) per available seat mile.
Type A: 7.3, 8.3, 7.6, 6.8, 8.0
Type B: 5.6, 7.6, 7.2
Type C: 7.9, 9.5, 8.7, 8.3, 9.4, 8.4
At 0.01 level of significance, can we conclude that there is not true difference between plane types in fuel costs?

2. Actually, i have just 4 hours left in my exams and i could not get help from anyone due to weekend. i will be very much thankful if someone can help.

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