The addition of a new accelerator is claimed to decrease the drying time of latex paint by more than 4%. Several test sa

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The addition of a new accelerator is claimed to decrease thedrying time of latex paint by more than 4%.
Several test samples were conducted with the followingpercentage decrease in drying time. Assume that the percentagedecrease in drying time is normally distributed. 5.2 6.5 3.6 5.83.4 2.1 2.8 4.3
(a) Find the 95% confidence interval for the true mean decreasein the drying time based on this sample. (Give your answers correctto two decimal places.)
_______ to ____________
A student group maintains that each day, the average studentmust travel for at least 25 minutes one way to reach college. Thecollege admissions office obtained a random sampleof 32 one-way travel times from students. The sample hada mean of 19.3 minutes and a standard deviationof 10 minutes. Does the admissions office have sufficientevidence to reject the students' claim? Use 𝛼 = 0.01.
Find t. (Round your answer to two decimalplaces.) Find the p-value. (Round your answer to fourdecimal places.)