### Find degree of confidence interval for population mean

Assignment Help Basic Statistics
##### Reference no: EM13139280

A simple random sample of students is selected, and the students are asked how much time they spent preparing for a test. The times (in hours) are as follows :

1.3 7.2 4.2 12.5 6.6 2.5 5.5

Based on these results, a confidence interval for the population mean is found to be u = 5.7 PLUS OR MINUS 4.4. Find the degree of confidence.

#### Whether given would be likely if you were to take a sample

Explain whether each of the following would be likely if you were to take a sample of 190 students from the original population.- The mean hours of sleep for the 190 student

#### Find confidence interval for mean number of peaches per tree

Find the 90% confidence interval for the mean number of peaches per tree. How many trees does she need to sample to be accurate within 10 peaches per tree?

#### What is the correct statistical decision in case

A 99% confidence interval for the proportion () of all Lewisburg residents whose annual income exceeds \$80,000 extends from 0.10 to 0.18. what is the correct statistical dec

#### Learning about the regression effect

A human resources director, on learning about the regression effect, decides to hire people who have been fired by their previous employer for poor performance.

#### Probability score on mathematics part of sat will be more

Both SAT and ACT scores are normally distributed. What is the probability that a randomly selected high school senior's score on the mathematics part of the SAT will be more

#### Problem regarding the cloud seeding

1. Cloud Seeding. What is the experimental unit in the cloud seeding experiment? 2. Cloud Seeding. Randomization in the cloud seeding experiment was crucial in assessing the e

#### Probability point is within twenty five feet of end of line

A location along a 500 foot assembly line from which to observe the work habits of the workers on the line. What is the probability that the point she selects: is within 25

#### Hypothesis test for difference of population difference

A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 70%.

### Write a Review 