A random sample of 13 brands of caffeinated coffee resulted in the following 95% confidence interval for 𝜇, the average caffeine content in a cup of caffeinated coffee: (85.12, 154.08).  Interpret this interval.

Use the following information for questions 17 and 18.You randomly select 16 restaurants and measure the temperature of the coffee sold at each. The sample mean temperature is 162 F with a standard deviation of 10 F. Assuming that the temperature of the coffee is approximately normally distributed. Find a 95% confidence interval for the mean temperature.Group of answer choices(172.6, 182.9)(171.5, 181.3)(144.7, 156.5)(168.9, 172.5)(156.7, 167.3)

It takes _____ hours for 95% of caffeine consumed to be excreted.76-1201-2100-11None of the above

Recall that the study reported that with 95% confidence, the underlying mean number of drinks consumed by Australian university students on a typical drinking day is somewhere between 4.8 and 6. Around 100 responses from Australian university students were used to construct this confidence interval.If the study had instead involved around 400 responses, given that the sample standard deviation did not change, the 95% confidence interval for the underlying mean number of drinks consumed by Australian university students on a typical drinking day would have been:about 1/2 as wideabout 1/4 as widepretty much unchangedabout 4 times wider

Krysta is a nutritionist studying the effects of caffeine. She starts by researching the caffeine content of 20 popular brands of regular coffee, then looks at the caffeine content of 20 popular energy drinks. The coffee drinks have a median of 242 milligrams of caffeine per serving, and an interquartile range of 50 milligrams. The energy drinks have a median of 114 milligrams of caffeine per serving, and an interquartile range of 137 milligrams.What can you conclude from these statistics? Complete the sentence.In the drinks Krysta researched, the coffee drinks typically have  lessmoreabout the same amount of caffeine compared to the energy drinks and have  lessmoreabout the same amount of variability in the amount of caffeine per serving. Submit

(c) If appropriate, construct an 80% confidence interval for the mean calorie count for all 12-ounce milkshakes sold at fast-food restaurants. Round the answers to at least two decimal places.An 80% confidence interval for the mean calorie count for all 12-ounce milkshakes sold at fast-food restaurants is <<μ.