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Protein intake can range from 0.8 grams to 2.0 grams per pound of body weight depending on age and activity level.

Data file: Datafile_Question 1.xlsx The file above contains a random sample of 200 service times during the busiest hour of the day at a particular fast-food restaurant. Calculate a 95% confidence interval for the proportion of service times longer than 90 seconds. What are the values of lower limit (LL) and upper limit (UL)? Round your answer to 3 decimal places.   

Which of the following can permanently increase our resting metabolism?

You have been assigned to determine whether more people prefer Coke or Pepsi. Assume that roughly half the population (i.e., 0.5) prefers Coke and half prefers Pepsi. How large a sample do you need to take to ensure that you can estimate, with 95% confidence, the proportion of people preferring Coke within 2% of the actual value? Round your answer to whole number. Use the attached Excel spreadsheet to calculate the answer for this question: Blank spreadsheet for your use.xlsx

Construct a 95% confidence interval to estimate mean Age. What are the values of lower limit (LL) and upper limit (UL)?  Data file: Data file – Question 3.xlsx

What is an advantage of group therapy over individual therapy?

According to data, the average monthly household cellular phone bill is $141. Suppose monthly household cell phone bills are normally distributed with a standard deviation of $13. What is the probability that a randomly selected monthly cell phone bill is between $130 and $140? Round your answer to 3 decimal places. For example, if the answer is 0.52443, enter 0.524

Construct a 95% confidence interval to estimate mean male Age. What are the values of lower limit (LL) and upper limit (UL)?  Data file: Data file – Question 3 (updated)-5.xlsx

This doctor would be the first to recognize your son or daughter was bulimic.

Older adults diet tends to lack in Vitamin B-12 and iron.