Question

Suppose Jason read an article stating that in a 2003‑2004 survey, the average American adult age...

Suppose Jason read an article stating that in a 2003‑2004 survey, the average American adult age 19‑30 drank an average of 1.47 liters of plain water per day with a standard deviation of 0.09 liters. Jason wants to find out if the men at his college drink a similar amount per day. He asks a random sample of 45 male students in his college to record the amount of water they drink in one day, and he is willing to assume that the standard deviation at his college is the same as in the 2003‑2004 survey. The sample mean liters of water in Jason's sample is 1.52. Jason wants to determine a rough approximation of the 95% confidence interval for ? , the average amount of water the men at his college drink per day. Enter the lower and upper limits of the approximate 95% confidence interval for the mean amount of water that the male students drink per day. Round your final answer to four decimal places.

Homework Answers

Answer #1

​​​​​​

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Attempt 3 Suppose Jason read an article stating that in a 2003–2004 survey, the average American...
Attempt 3 Suppose Jason read an article stating that in a 2003–2004 survey, the average American adult woman aged 19–30 drank an average of 1.04 liters of plain water per day with a standard deviation of 0.11 liters. Jason wants to find out if the women at his college drink a similar amount per day. He asks 45 of his female classmates in his Introductory Economics class to record the amount of water they drink in one day, and he...
A survey conducted by the American Automobile Association showed that a family of four spends an...
A survey conducted by the American Automobile Association showed that a family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a sample standard deviation of $69.50. a. Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to 2 decimals). ( , )...
A survey conducted by the American Automobile Association showed that a family of four spends an...
A survey conducted by the American Automobile Association showed that a family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a sample standard deviation of $75.50. a. Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to 2 decimals). (  ,  ) b. Based...
A survey conducted by the American Automobile Association showed that a family of four spends an...
A survey conducted by the American Automobile Association showed that a family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a sample standard deviation of $78.50. a. Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to 2 decimals). ( ___ ,...
A survey conducted by the American Automobile Association showed that a family of four spends an...
A survey conducted by the American Automobile Association showed that a family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a sample standard deviation of $74.50. a. Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to 2 decimals). (____,_____) b. Based...
According to a survey conducted by the American Automobile Association, a family of four spends an...
According to a survey conducted by the American Automobile Association, a family of four spends an average of $255.60 per day while on vacation in the US. Suppose a sample of 36 families of four vacationing at Mount Rushmore resulted in a sample mean of $235.31 per day and a sample standard deviation of $53.50. a) Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Mount Rushmore (round to two...
Do we check our phones too many times per day? In a survey of a random...
Do we check our phones too many times per day? In a survey of a random sample of 89 college sophomores, researchers asked these students to keep track of the number of times they checked their phone in a typical day. The average number of times the sample reported checking their phones per day was 52.5, with a sample standard deviation of 10.6. If a 95% confidence interval is constructed based on this sample data, what will the margin of...
According to a USA Today 2018 study the average adult in Montana drinks 40.8 gallons of...
According to a USA Today 2018 study the average adult in Montana drinks 40.8 gallons of beer in a year (1st in the country, New Hampshire was the 2nd most with 39.8 gallons per year, and North Dakota and South Dakota are tied for 3rd with 38.2 gallons on average per year). Suppose the Montana Brewer’s Association (MBA) think that this number is actually higher. In a survey of 42 random Montana adults they found the mean gallons drunk to...
1. The average number of minutes spent per day using social media by a population of...
1. The average number of minutes spent per day using social media by a population of college sophomores is 29.6 minutes. If we take a random sample of size n = 87 from this population and find that the sample standard deviation is 7.3 minutes, we know the sampling distribution of the sample mean in this case would have a standard deviation equal to A. 4.05 minutes. B. 1.60 minutes. C. 0.78 minutes. D. 7.30 minutes. E. 3.17minutes. 2. Return...
question 1. A marketing specialist wants to estimate the average amount spent by visitors to an...
question 1. A marketing specialist wants to estimate the average amount spent by visitors to an online retailer's newly-designed website. From the data in a preliminary study she guesses that the standard deviation of the amount spent is about 16 dollars. How large a sample should she take to estimate the mean amount spent to within 4 dollars with 95% confidence? (Round your answer up to the next largest integer). ______ question 2. Pepsi wants to use this technique to...