Using the line of best fit, what would be the residual of a semi-truck with a speed of 20 mph and stopping distance of 75 ft? Round answer to three decimal places.

Perform the appropriate hypothesis test. Report the t-statistic and p-value.  z-statistic: [tstat] (Round answer to three decimal places.) p-value: [p-value] (Round answer to four decimal places.)

Which of the following conditions are necessary to check for this test? (Select all that apply)

Above what value are the highest 7% of newborn weights? (Round answer to three decimal places.)

Discuss the practical and statistical significance.

What percent of newborns have a weight over 9lbs, 4.08kg? (Round answer to three decimal places.)

Use the following information to answer the next 6 questions. A major pharmaceutical company has developed a new drug designed to lower systolic blood pressure (SBP) in patients with mild to moderate hypertension. To test its effectiveness, a study was conducted involving patients who were monitored for a month. A random sample of 45 patients with hypertension was selected. The systolic blood pressure (SBP) was recorded for each patient before they started taking the new drug. Each patient then took the drug daily for four weeks. After the four-week period, the SBP was recorded again for the exact same 45 patients. The researchers want to determine if there is a reduction in systolic blood pressure after four weeks of taking this new drug. The following statistics were calculated from the difference data: : 8.50 mmHg : 15.20 mmHg

Use the following information to answer the next 4 questions. The distribution of 2024 Newborn Weights are normally distributed with a mean of about 3.4 kg and a standard deviation of 0.6 kg, N(3.4, 0.6).

What does this slope mean in this context?

What type of variable is the following: Social Security Number (SSN)