The null and alternative hypotheses are given. determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. what parameter is being tested? upper h 0h0: muîľ == 33 upper h 1h1: muîľ less than< 33 what type of test is being conducted in this problem?

We are given:

Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.

Since the alternative hypothesis has less than sign, therefore the given hypothesis is left-tailed

What parameter is being tested?

The parameter used is , which denotes the population mean.

Please note:

The type is test determined based on the alternative hypothesis.

If the alternative hypothesis has sign, it means the hypothesis test is two-tailed

If the alternative hypothesis has sign, it means the hypothesis test is right-tailed

If the alternative hypothesis has sign, it means the hypothesis test is left-tailed

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m