In a random sample of 600 cars making a right turnat a certain intersection, 157 pulled into the wrong lane. Use the 0.05 level of significance to test the null hypoth-esis that the actual proportion of drivers who make this mistake at the given intersection is θ = 0.30 against thealternative hypothesis θ Z 0.30.

My solution is incorrect

Does it take less time for seeds to germinate if they are near rock music that is continuously playing compared to being near classical music? The 41 seeds that were exposed to rock music took an average of 20 days to germinate. The standard deviation was 13 days. The 53 seeds that were exposed to classical music took an average of 23 days to germinate. The standard deviation for these seeds was 7 days. What can be concluded at the αα = 0.05 level of significance? The test statistic  t = (please show your answer to 3 decimal places.)   The p-value = (Please show your answer to 4 decimal places.)

An experiment is conducted to compare the maximum load capacity in tons (the maximum weight that can be tolerated without breaking) for two alloys A and B It is Kknown that the two standard deviations in load capacity are equal at 7 tons each. The experiment is conducted on 50 specimens of each alloy (A and B) and the results are X = 75.8. X = 71.8, and X-X=4. The manufacturers of alloy A are convinced that this evidence shows conclusively that Hug and strongly supports the claim that their alloy is superior. Manufacturers of alloy 8 claim that the experiment could easily have given X-X 4 even if the two population means are equal. Complete parts (a) and (b) below. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. (a) Make an argument that manufacturers of alloy B are wrong. Do it by computing P(XA-XB41 PA-HB) P(XA-X > 4) - @