Determine the Null and Alternative Hypothesis for the following:

A.) A company manufactures flares, they select 100 at random to determine if the flares last at least 3 hours on average.

B.) A consumer group believes that a new sports coupe gets significantly less MPG than advertised on the sales sticker. To confirm this belief, they randomly select several of the new couples and measure the MPG.

A. Ho: Time ≥ 3

Ha: Time < 3

B. Ho: mpg < ad
Ha: mpg ≥ ad

A.) In this scenario, the null hypothesis would be that the flares last at least 3 hours on average, while the alternative hypothesis would be that the flares do not last at least 3 hours on average.

Null Hypothesis (H0): The average duration of flares is at least 3 hours.
Alternative Hypothesis (H1): The average duration of flares is less than 3 hours.

B.) For the consumer group's investigation, the null hypothesis would be that the new sports coupe gets the same MPG as advertised on the sales sticker, while the alternative hypothesis would be that the new sports coupe gets significantly less MPG than advertised.

Null Hypothesis (H0): The average MPG of the new sports coupe is equal to the advertised MPG.
Alternative Hypothesis (H1): The average MPG of the new sports coupe is significantly less than the advertised MPG.