Point estimate and confidence interval problem

Reference no: EM13104338

Let X equal the weight in grams of a 52-gram snack pack of candies. Assume that the distribution of X is N(μ, 4). A random sample of n = 10 observations of X yielded the following data:

55.95 56.54 57.58 55.13 57.48
56.06 59.93 58.30 52.37 58.46

(a) Give a point estimate for μ and find the endpoints for a 95% confidence interval for μ.

(b) Based on the data, what is the probability that an individual snack pack selected at random is filled with less than 52 grams of candy?

This is one of the example problems in our review packet to prepare for the midterm exam. The formulas in the textbook chapter are kind of confusing and I'm not sure what the correct steps are to solve this type of problem. Any help would be appreciated.

Reference no: EM13104338

Questions Cloud

Confidence interval of the true mean age : In a study of 24 criminals convicted of antitrust offenses, the average age was 55 years, with a standard deviation of 7.6 years. Construct a 98% confidence interval of the true mean age.

Calculate the number of hours per year : A wind turbine with a rotor diameter of 50 m is rated at Y kW at a hub height wind speed of m/s. It has a cut-in wind speed of m/s and a cut-out speed of m/s.

Scores on an in-plant course in management principles : A study of the scores on an in-plant course in management principles and the years of service of the employees enrolled in the course yielded the following statistics.

Powerpoint presentation about present issues facing by women : PowerPoint presentation of 8 to 10 slides, with speaker's notes, about present issues facing women who participate in, or are influenced by, criminal justice system.

Point estimate and confidence interval problem : Let X equal the weight in grams of a 52-gram snack pack of candies. Assume that the distribution of X is N(μ, 4). A random sample of n = 10 observations of X yielded the following data:

Finding sample amount for population mean : In a study, the carapace lengths (in mm) of Thenus lobster caught near Singapore measured: 78,66,65,63,60,60,58,56,52 and 50 ( the population data is approximately normal).

Find the average acceleration of the plane : A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 190 mi/h in 2.00 s. (a) Find the average acceleration of the plane. Your response is within 10% of the correct value. This may be due to round..

Six sigma dmaic improvement approach : Identify an organization that uses the Six Sigma DMAIC improvement approach. Describe in a short paper some of the ways that this organization has applied DMAIC and the results it has achieved.

Effect of hispanic and latino panethnicity in future : Though grouping includes wide range of cultures there is evidence of formation of panethnic identity. What do you forecast effect of Hispanic and Latino panethnicity to be in future?

User Account

All Pages