Question

In a sample of 1000 Yuba College students, it was found that they consumed on average...

In a sample of 1000 Yuba College students, it was found that they consumed on
average 23 grams of sugar with a standard deviation of 4 grams and that 230 planned to transfer
to Chico State.
a) (7 points) Can we conclude with 99% confidence that Yuba College students consume on
average over 20 grams of sugar? Use the rejection region approach.

Homework Answers

Answer #1

for further query please comment below.thank you

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
In a random sample of 25 students, it was found that they consumed on average 23...
In a random sample of 25 students, it was found that they consumed on average 23 grams of sugar each day with a standard deviation of 4 grams. a) Construct a 99% confidence interval for the mean amount of sugar consumed by students. b) Interpret the confidence interval found in part a.
An article reports that in a sample of 413 male college students, the average number of...
An article reports that in a sample of 413 male college students, the average number of energy drinks consumed per month was 2.50 with a standard deviation of 4.87, and in a sample of 382 female college students, the average was 1.22 with a standard deviation of 3.25. Can you conclude that the mean number of energy drinks is greater for male students than for female students? Find the P-value
Consider a sample of 30 college students from Victoria. Based on this sample, it was found...
Consider a sample of 30 college students from Victoria. Based on this sample, it was found that the average amount spent on beverages during the Halloween weeekend was $40. The population standard deviation is $6.50. Assume the following: the population of college students is very large relative to the sample size, and the population is normally distributed. What is the upper confidence limit for an 88% confidence interval around the population mean? Express your solution rounded to two decimal places.
The average American consumes 90 liters of alcohol per year. Does the average college student consume...
The average American consumes 90 liters of alcohol per year. Does the average college student consume more alcohol per year? A researcher surveyed 15 randomly selected college students and found that they averaged 98.8 liters of alcohol consumed per year with a standard deviation of 18 liters. What can be concluded at the the αα = 0.01 level of significance? For this study, we should use Select an answer z-test for a population mean t-test for a population mean   The...
1. A statistician studies the average annual salary of professors in a local college in Florida....
1. A statistician studies the average annual salary of professors in a local college in Florida. <a> Based on a random sample of 33 professors in this college, we found the mean salary is 52,000, and standard deviation is 6,400. Construct a 99% confidence interval for the population’s mean annual salary. <b> Based on another random sample of size 28, we found the mean salary is 54,500, and if we know the standard deviation of all professors in that college...
1. A statistician studies the average annual salary of professors in a local college in Florida....
1. A statistician studies the average annual salary of professors in a local college in Florida. Based on a random sample of 33 professors in this college, we found the mean salary is 52,000, and standard deviation is 6,400. Construct a 99% confidence interval for the population’s mean annual salary. Based on another random sample of size 28, we found the mean salary is 54,500, and if we know the standard deviation of all professors in that college is 7,200....
A sample of 1000 college students at NC State University were randomly selected for a survey....
A sample of 1000 college students at NC State University were randomly selected for a survey. Among the survey participants, 102 students suggested that classes begin at 8 AM instead of 8:30 AM. The sample proportion is 0.102. What is the upper endpoint for the 99% confidence interval? Give your answer to three decimal places. (Note that due to the randomization of the questions, the numbers in this question might be different from the previous question.) ANSWER: _________
A budding statistician wants to determine the average number of songs college students have on their...
A budding statistician wants to determine the average number of songs college students have on their playlist. They take a random sample of 26 students at their university and find the sample mean is 348 songs with a sample standard deviation of 22 songs. a. Find a 90% confidence interval for the mean number of songs college students have on their playlist. b. Interpret the confidence interval you found in part a. c. State the assumptions needed for your confidence...
A budding statistician wants to determine the average number of songs college students have on their...
A budding statistician wants to determine the average number of songs college students have on their playlist. They take a random sample of 26 students at their university and find the sample mean is 348 songs with a sample standard deviation of 22 songs. a. Find a 90% confidence interval for the mean number of songs college students have on their playlist. b. Interpret the confidence interval you found in part a. c. State the assumptions needed for your confidence...
Sleep – College Students: Suppose you perform a study about the hours of sleep that college...
Sleep – College Students: Suppose you perform a study about the hours of sleep that college students get. You know that for all people, the average is about 7 hours. You randomly select 40 college students and survey them on their sleep habits. From this sample, the mean number of hours of sleep is found to be 6.2 hours with a standard deviation of 0.86 hours. We want to construct a 99% confidence interval for the mean nightly hours of...