The FlyHi Airplane Manufacturing Co. builds the SB238, a light airplane. FlyHi Airplane Manufacturing claims that...

The FlyHi Airplane Manufacturing Co. builds the SB238, a light airplane. FlyHi Airplane Manufacturing claims that the average takeoff distance for a fully loaded SB238 is less than 500 m. A sample of 9 planes was tested and the average takeoff distance was found to be 530 m with a standard deviation of 37 m. At the .02 significance level, test Smith's claim.

Expert Solution

(1) Null and Alternative Hypotheses

The following null and alternative hypotheses need to be tested:

Ho: μ ≥ 500

Ha: μ < 500 ( Claim )

(5) Conclusion

It is concluded that the null hypothesis Ho is not rejected. Therefore, there is not enough evidence to claim that the average takeoff distance for a fully loaded SB238 is less than 500 m at 0.02 significance level

orchestra answered 2 years ago

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