Question

2. n = 14 samples are taken from a stream; the mean pollutant level is 16.4...

2. n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l, and the standard deviation is 5.3. Test the hypothesis that the true mean is no different than the "normal" level of 12.5 mg/l. State the null and alternative hypotheses, and use a Type I error level of 5%.

PLEASE HELP!

Homework Answers

Answer #1

# all the critical t -values and p values obtained from table (t-table)

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
2. n = 14 samples are taken from a stream; the mean pollutant level is 16.4...
2. n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l, and the standard deviation is 5.3. Test the hypothesis that the true mean is no different than the "normal" level of 12.5 mg/l. State the null and alternative hypotheses, and use a Type I error level of 5%.
n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l,...
n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l, and the standard deviation is 5.3. Test the hypothesis that the true mean is no different than the "normal" level of 12.5 mg/l. State the null and alternative hypotheses, and use a Type I error level of 5%.
n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l,...
n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l, and the standard deviation is 5.3. Test the hypothesis that the true mean is no different than the "normal" level of 12.5 mg/l. State the null and alternative hypotheses, and use a Type I error level of 5%. (4)
n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l,...
n = 14 samples are taken from a stream; the mean pollutant level is 16.4 mg/l, and the standard deviation is 5.3. Test the hypothesis that the true mean is no different than the "normal" level of 12.5 mg/l. State the null and alternative hypotheses, and use a Type I error level of 5%. Thank you!
suppose n = 13 samples are taken from a stream; the mean pollutant level is 16.7...
suppose n = 13 samples are taken from a stream; the mean pollutant level is 16.7 mg/l, and the standard deviation is 5.1. Use the p-value approach and a significance level of 0.05 to test the hypothesis that the true mean is no different than the ‘normal’ level of 14.2 mg/l. Write down the null and alternative hypotheses, find the test statistic and the p-value, and state your conclusion.
A researcher suspects that the mean pollutant level in a region is higher than the state...
A researcher suspects that the mean pollutant level in a region is higher than the state average of 4.3 grams/cubic liter.  Data are collected; from 56 samples, the mean is found to be 5.4, with a standard deviation of 5.0.  Test the null hypothesis that the true mean in the region is 4.3, against the alternative that it is higher.  State the null and alternative hypotheses, give the critical value, find the test statistic, make a decision, and give the p-value.
A researcher suspects that the mean pollutant level in a region is higher than the state...
A researcher suspects that the mean pollutant level in a region is higher than the state average of 4.3 grams/cubic liter. Data are collected; from 56 samples, the mean is found to be 5.4, with a standard deviation of 5.0. Test the null hypothesis that the true mean in the region is 4.3, against the alternative that it is higher. State the null and alternative hypotheses, give the critical value, find the test statistic, make a decision, and give the...
A researcher suspects that the mean pollutant level in a region is higher than the state...
A researcher suspects that the mean pollutant level in a region is higher than the state average of 4.3 grams/cubic liter. Data are collected; from 56 samples, the mean is found to be 5.4, with a standard deviation of 5.0. Test the null hypothesis that the true mean in the region is 4.3, against the alternative that it is higher. State the null and alternative hypotheses, give the critical value, find the test statistic, make a decision, and give the...
5. A researcher suspects that the mean pollutant level in a region is higher than the...
5. A researcher suspects that the mean pollutant level in a region is higher than the state average of 4.3 grams/cubic liter. Data are collected; from 56 samples, the mean is found to be 5.4, with a standard deviation of 5.0. Test the null hypothesis that the true mean in the region is 4.3, against the alternative that it is higher. State the null and alternative hypotheses, give the critical value, find the test statistic, make a decision, and give...
A sample of 16 cookies is taken to test the claim that each cookie contains at...
A sample of 16 cookies is taken to test the claim that each cookie contains at least 9 chocolate chips. The average number of chocolate chips per cookie in the sample was 7.875 with a standard deviation of 1. Assume the distribution of the population is normal. Please give the answers clearly labeled in order. Thanks :) a. State the null and alternative hypotheses. b. Using a critical value, test the hypothesis at the 1% level of significance. c. Using...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT