# Statistics

posted by .

A random sample of 14 evenings at the O'Sullivan house hold showed that the family received an average of 2.4 solicitation calls each evening. The sample standard deviation was s= 0.9. Find a 99% confidence interval for the population mean number of solicitation calls this family receives each night. Assume that the distribution of the number of solicitation calls this family distribution. Interpret the interval in the context of this problem. State what assumptions were met to use the method you selected.

## Similar Questions

1. ### Statistics

In a random sample of 50, the average is 3987 with a population standard deviation of 630. How can one find the 90% confidence interval of the true mean?
2. ### statistics

A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is 15. a) Compute the 95 % confidence interval for the population mean. b) Assume that the same sample mean was obtained from a sample …
3. ### Statistics

suppose a random sample of 360 students is drawn form a population of students. Among sampled, the average IQ score is 12 with standard deviation of 3. What is the upper confidence limit of the 95% confidence interval of the population
4. ### Statistics

A random sample of 14 evenings at the O'Sullivan house hold showed that the family received an average of 2.4 solicitation calls each evening. The sample standard deviation was s= 0.9. Find a 99% confidence interval for the population …
5. ### Statistics

A 95% confidence interval for a population mean, ?
6. ### Statistics

1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could …
7. ### Statistics

1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could …
8. ### Statistics

Hello, my problem is I have a random sample of only 15 sales average is \$115 with a known population standard deviation of \$25.00. Obtain a 92% confidence interval and explain what your answer means. I am not sure what to do because …
9. ### Statistics (42)

A simple random sample of 60 items resulted in a sample mean of 96. The population standard deviation is 16. a. Compute the 95% confidence interval for the population mean (to 1 decimal). ( , ) b. Assume that the same sample mean was …
10. ### probs & stats

1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could …

More Similar Questions