Confidence interval-problem and solution

Assignment Help Basic Statistics

Reference no: EM13104493

For a sample of 36 students in a class the mean score in Mathematics is 72 with a standard deviation of 7. Find the 95% confidence interval for the mean score.

Reference no: EM13104493

Questions Cloud

Determining interpretation confidence interval : The U.S. Food and Drug Administration (FDA) performed a study that compared the carbohydrate content (as a percentage of weight) of several major brands of corn and potato chips.

From what height would you have to drop the rock : The planet Mercury has a mass that is 5.00% of that of Earth, and its gravitational acceleration is gmercury = 3.70 m/s2. a) How long does it take for a rock that is dropped from a height of 2.63 m to hit the ground on Mercury?

Determine the charge of the particle : A moving particle encounters an external electric field that decreases its kinetic energy from 9910 eV to 6840 eV as the particle moves from position A to position B.

Percent of undergraduate students carry credit card : Nine percent of undergraduate students carry credit card balances greater than $7,000. Suppose 10 undergraduate students are selected randomly to be interviewed about credit card usage.

Confidence interval-problem and solution : For a sample of 36 students in a class the mean score in Mathematics is 72 with a standard deviation of 7. Find the 95% confidence interval for the mean score.

How fast is the electron moving : An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is ? = 1.81 10-7 C/m2, and the plates are separated by a distance of 1.38 10-2 m. How fast is the electron moving just be..

Compute optimal production quantity for the card : Wholemark is an Internet order business that sells one popular New Year greeting card once a year. The cost of the paper on which the card is printed is $0.95 per card, and the cost of printing is $0.40 per card.

Constucting the confidence interval for mean : The following data values are a simple random sample from a population that's normally distributed with (symbol for variance) o2=4.0:

Find the reorder point : The annual demand for a product is 14,200 units. The weekly demand is 273 units with a standard deviation of 95 units. The cost to place an order is $32.00, and the time from ordering to receipt is four weeks.

User Account

All Pages