The 99% confidence interval for the mean mpg of all new 'ultra-green' cars is

Construct a 96% confidence interval if x=75 and n=200. Round your answers to 3 decimal places.

Report a 95% confidence interval for the slope coefficient. What is the left limit of the interval? Round to four decimals.

You want to get a 90% confidence interval for the difference between the percentage of females with red hair compared to males with red hair. You sample 76 females and find 34 of them have red hair. You sample 65 males and find 33 have red hair. < p1−p2 <

For each scenario, indicate whether the parameter of interest is one proportion , a difference in two proportions , one mean (μ), a difference in means from separate samples , or the mean difference from matched pairs data,  .  Each answer can be selected once, more than once, or not at all. A tire manufacturer tested the braking performance of one of its tire models on a test track, interested in how tires perform under both wet and dry pavement conditions. The company tried the tires on 18 different car models, recording the stopping distance for half of them on wet pavement and the other half of dry pavement.   Student Computing Services surveys a random sample of students to compare the percent of students that have PCs to the percent of students that have Macs.    Married couples are asked about the number of hours of sleep they get each night. We want to see if husbands get more sleep than their wives.   36 of 75 patients receiving a treatment experienced pain relief, while only…

From a sample of 500 Pepperdine students, 205 said they commuted to school. Find the 95% confidence interval using 2 decimal places for the proportion of Pepperdine students who commute. If you use a calculator, indicate the function used and the parameters you entered for the function.

Can you help me with this question from my Business Statistics class?

If n=230 and p (p-hat) = 0.61, construct a 95% confidence interval. Give your answers to three decimals