Good Day,

I hope you are well.

I am struggling with the concept of null and alternative hypothesis.

can you please assist me by explaining these specific questions about the topic.

Please note that I would like these specific questions to be explained.

Your assistance is greatly appreciated.

I look forward to your reply.

Kind regards.

Question 2 10 points Save Answer In a preliminary study to determine whether the installation of a camera designed to catch cars that go through an intersection on a red traffic light affects the number of violators, the number of violators that go through an intersection on a red traffic light was recorded for each day of the week before and the week after the camera was installed. Test at a 1% level of significance whether the installation of a camera resulted in a reduction of the number of violators that go through the intersection on a red traffic light, given the results below. Decide whether the null hypothesis is rejected or not. Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Before 12 16 31 18 20 24 16 After 8 18 24 19 16 19 16 Reject H o Do not reject H o Question 3 10 points Save Answer A study is made of the number of business meals that the business members monthly deduct as deductible expenses. Forty business members in the insurance industry had made on average 9.4 such deductions with a standard deviation of 3.3 in a given month, while 50 bank-members on average had 7,9 such deductions with a standard deviation of 2,9. Test (at a 5% level of significance) if the difference between the two populations means are significant. Give the null and alternative hypothesis. O How1 = H2; Ha H1 > H2 O HOW1 = H2; Ha-H1 # H2 O HOW1 = H2; HaH1 P2 O Ha: P1 H2 O HOW1 = H2: Ha H1 # H2 O HOW1 = H2; Ha.H1