Question

The mean age of San Bernardino Valley College students in a previous term was 26.6 years...

The mean age of San Bernardino Valley College students in a previous term was 26.6 years old. An instructor thinks the mean age for online students is older than 26.6. She randomly surveys 56 online students and finds that the sample mean is 29.4 with a standard deviation of 2.1. Conduct a hypothesis test using a 90% confidence level.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
3: A statistics instructor believes that fewer than 20% of Evergreen Valley College students attended the...
3: A statistics instructor believes that fewer than 20% of Evergreen Valley College students attended the opening night midnight showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 of them attended the midnight showing. Let ? = proportion of Evergreen Valley College students that attended the midnight showing. A: State the Null and Alternate Hypotheses. B: Determine the test statistic for the sample. C: Find the p-value. D: At a significance level...
The mean age for all Foothill College students for a recent Fall term was 33.2. The...
The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that thirty-six Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter Foothill College students. Let X = the age of a Winter Foothill College student. Construct a 90% Confidence Interval for the true mean age of Winter Foothill College students...
The mean age for all Foothill College students for a recent Fall term was 33.2. The...
The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that twenty-five Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter Foothill College students. Let X = the age of a Winter Foothill College student. Construct a 90% Confidence Interval for the true mean age of Winter Foothill College students...
The mean age for all Foothill College students for a recent Fall term was 33.2. The...
The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that twenty-five Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter Foothill College students. Let X = the age of a Winter Foothill College student. Construct a 95% Confidence Interval for the true mean age of Winter Foothill College students...
The mean age of all students at a local community college for a recent Fall term...
The mean age of all students at a local community college for a recent Fall term was 32.4. The population standard deviation has been pretty consistent at 12. Suppose that 25 students from the college were randomly selected. The mean age for the sample was 29.7. The true mean age of the community college students, given a confidence level of 95% lies between [x] and [y].  Please enter the lower limit of the interval first and the upper limit second. Please...
The mean age for all Foothill College students for a recent Fall term was 33.2. The...
The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that twenty-five Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter Foothill College students. Let X = the age of a Winter Foothill College student. A. Construct a 95% Confidence Interval for the true mean age of Winter Foothill College...
Ages of students: A simple random sample of 100 U.S. college students had a mean age...
Ages of students: A simple random sample of 100 U.S. college students had a mean age of 22.68 years. Assume the population standard deviation is σ = 4.74 years. Construct a 99% confidence interval for the mean age of U.S. college students. The answer I posted my instructor says it is wrong. I came up with 21.45 to 23.91 a 99% confidence interval for the mean of the U.S college students She said the z procedures are needed. Thanks.
In narrative essay format, I want you to address a business/organization case study using multiple concepts...
In narrative essay format, I want you to address a business/organization case study using multiple concepts from class. The case question and case text begin on page 5 of this document. You need to demonstrate their best understanding of management and organizational behavior theory, and the application of those ideas to improve the understanding of various issues. You need to clearly identify at least 3 distinct, substantive issues. For each issue you need to 1), identify evidence from the case...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT