Question 15 Not yet answered Marked out of 4 Flag question A random sample of 25 of the record high temperatures in the United States had a mean of 114.6 degrees Fahrenheit and the standard deviation to be s = 8.12. Find the standard error of x for constructing a 95% confidence interval for true mean highest temperature Answer: Previous pageIn our initial class survey, there were 13 students that were involved in a car crash in some way out of 23 responses. Construct a 94% confidence interval for the true proportion of Bergen students that were involved in a car crush. (a) State the parameter our confidence interval will estimate. (b) What type of an interval (t or z) can be constructed for this parameter? Why? Time left 0:39:23 je proportion and the margin of error for an 94% confidence interval. Show your work. (d) A politician is urging to pass legislature to have more stringent restrictions on young driver licenses issuance stating: "One in every 5 crashes involves a driver under 25." Does your interval support this statement? Please explain. Bonus: state 2 ways to narrow this interval for the true proportion of young people involved in car accidents?LockDo The level of dissolved oxygen in water is a strong predictor of health and diversity of ecosystems. Researchers are conducting a study of Long Island sound waters. They collected 36 samples and found that the 95% confidence interval for dissolved oxygen was 104 + 3.87 JM. (a) Interpret their interval in context of the problem (b) Find the point estimate for their confidence interval. (c) Find the margin of error. (d) Hypoxic waters (lack in dissolved oxygen) are causing death of aerobic organisms including fish and shellfish. The upper threshold of hypoxic condition tween 62.5 and 157 uM. Were the samples in this research indicative of Time left 0:38:56 mypoxIC condition? Bonus: In order for the samples to have been out of the hypoxic range, what point estimate should the samples have (assuming the st. deviation of the samples is unchanged)