An automobile manufacturer claims that its jeep has a 35.2 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this jeep since it is believed that the jeep has an incorrect manufacturer's MPG rating. After testing 100 jeeps, they found a mean MPG of 35.4. Assume the standard deviation is known to be 1.1. A level of significance of 0.01 will be used. State the hypotheses. Enter the hypotheses: E Tables E Keypad Answer Keyboard Shortcuts Ho: На

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An automobile manufacturer claims that its jeep has a 35.2 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this jeep
since it is believed that the jeep has an incorrect manufacturer's MPG rating. After testing 100 jeeps, they found a mean MPG of 35.4. Assume the standard deviation is
known to be 1.1. A level of significance of 0.01 will be used. State the hypotheses.
Enter the hypotheses:
E Tables
в Кеурad
Answer
Keyboard Shortcuts
Ho
Transcribed Image Text:2/10 Question 3 of 10, Step 1 of 1 Correct An automobile manufacturer claims that its jeep has a 35.2 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this jeep since it is believed that the jeep has an incorrect manufacturer's MPG rating. After testing 100 jeeps, they found a mean MPG of 35.4. Assume the standard deviation is known to be 1.1. A level of significance of 0.01 will be used. State the hypotheses. Enter the hypotheses: E Tables в Кеурad Answer Keyboard Shortcuts Ho
Expert Solution
Step 1

Given,

Population mean = μ = 35.2

Sample size = n = 100

Sample mean = x = 35.4

Population standard deviation = σ = 1.1

Level of significance = α = 0.01

Here we use one sample z-test because the population standard deviation are given.

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