Listed below are the ages (in years) of randomly selected race car drivers. Use a 0.05 significance level to test the claim that the mean age of all race car drivers is greater than 30 years. 32 32 33 33 41 29 38 32 33 23 27 45 52 29 25 (a) State the null and alternative hypotheses. Then use StatCrunch to obtain the P -value needed to test the hypothesis. Write down the steps you take in StatCrunch and any statistics that StatCrunch requires in order to do the calculation. Round to four decimal places

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

17

step-by-step explanation:

51/3=17

thus 17 is your answer.

1/2(2*4)=6 $$- agahajakanajak