Random sample confidence interval

Assignment Help Basic Statistics

Reference no: EM13105183

A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighted on a very accurate scale. The results in grams were:

a. 3.087

b. 3.131

c. 3.241

d. 3.241

e. 3.270

f. 3.353

g. 3.400

h. 3.411

i. 3.437

j. 3.477

a) Construct a 90 percent confidence interval for the true mean weight.

b) What sample size would be necessary to estimate the true weight with an error of ± 0.03 grams with 90 percent confidence?

c) Discuss the factors which might cause variation in the weight of Tootsie Rolls during manufacture.

Reference no: EM13105183

Questions Cloud

Explain demonstrating ability in reasoning : A child is told that Bob is older than Sally, and Sally is older than Fred. When enquired, "Who is older, Bob or Fred?" child replies, "Bob." This child is demonstrating __________ ability.

Discuss the key considerations in the choice of outsourcing : Illustrate what are the key challenges in maintaining a relationship like the one among LEGO and Flextronics? Discuss the key considerations in the choice of outsourcing /off shoring production.

How a uniform electric field might used to measure distance : Describe how a uniform electric field might be used to measure distance. Hint: In the parallel electrode arrangement, what parameter(s) varied with distance between the electrodes and what parameter(s) stayed constant?

Discussion on the sequence of construction : A contracting company has been awarded a contract for converting 10 miles of a high-traffic gravel road into a hot-mixed asphalt pavement. The contract includes the tasks of reshaping and leveling the original road.

Random sample confidence interval : A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighted on a very accurate scale. The results in grams were:

Illustrate what provisions of u.s. constitution will applied : Illustrate what provisions of the U.S. Constitution will be applied by a court to determine the statute’s validity? o Is Tanya likely to prevail on her suit? Explain the reasons for your answer.

Same number of products and same brands : In February 2002, the Argentine peso lost 70% of its value compared to the United States dollar. This devaluation drastically raised the price of imported products.

Question on hypothesis testing-confidence interval : Consider that 10 observations were selected from a normal population whose variance is 64. Observations are: 58, 62, 45, 50, 59, 65, 39, 40, 41 and 52.

Explain how can a global company reconcile local expectation : Explain how can a global company reconcile local expectations of questionable payments with the Foreign Corrupt Practices Act?

User Account

All Pages