Q Ch 26:.. Q EXA Question 2 1 pts A paint manufacturer wished to compare the drying times of two different types of paint. Independent simple random samples of 11 cans of Best Paint has a mean drying times of 77.5 hours with a standard deviation of 4.5 hours, another simple random samples of 9 cans of Color has a mean drying times of 63.6 hours with a standard deviation of 5.1 hours were selected and applied to similar surfaces. Assume that drying times are approximately normally distributed. Find a 95% confidence interval for the difference between the population mean drying times for the Color brand and the Best Paint brand paints. H1 [Select ] H2 = [ Select] Question 3 1 pts From the problem about constructing a 95% confidence interval for the difference between the population mean drying times for the Color brand and the Best Paint brand paints. Compute the lower bound confidence interval. Round to two decimal places. Question 4 1 pts From the problem about constructing a 95% confidence interval for the difference between the population mean drying times for the Color brand and the Best Paint brand paints. Compute the upper bound confidence interval. Round to two decimal places. Question 5 1 pts From the problem about constructing a 95% confidence interval for the difference between the population mean drying times for the Color brand and the Best Paint brand paints. Draw conclusion and interpret the results. There is no difference between the mean drying times for the Color brand and the Best Paint brand paints. The mean drying times for the Color brand paint is longer than the Best Paint brand paint. The Color brand paint works faster in drying The mean drying times for the Color brand paint is shorter than the Best Paint brand paint. The Best Paint brand paint works faster in drying We are 95% confident that the population mean drying times falls between (what you answered in the last two problems). We are 95% confident that the difference between the population mean drying times falls between (what you answered in the last two problems). No new data to save. Last checked at 3:30pm Submit Quiz