Tuesday

March 31, 2015

March 31, 2015

Posted by **James** on Monday, January 18, 2010 at 11:00pm.

a. If a single pineapple is selected at random, what is the approximate probability that it weighs more than 35 ounces?

b. Suppose 2 pineapples are randomly and independently selected. Find the probability that exactly 1 of the 2 pineapples weighs more than 35 ounces.

c. If you select pineapples at random from the crop, how many pineapples might you have to inspect before you find one that weighs more than 35 ounces?

1. Design a simulation using a random digits table to mimic the search for a suitable pineapple.

2. Perform the simulation twice, clearly illustrating the procedure and the results. Begin on line 127 of Table B.

d. Find the probability that your 1st suitable pineapple (weighing 35 or more ounces) is one of the first 2 pineapples you inspect.

Managers were eager to test a new irrigation system and did so during this year’s production cycle.

e. How large a sample would you need to take to estimate the mean weight of the pineapples produced to within 1 ounce at a 95% confidence level?

f. Use a 95% confidence interval to determine whether this sample provides evidence of a change in the mean weight of pineapples produced. Explain.

g. Did the new irrigation system cause an increase in the mean weights of pineapples produced? Explain.

- statistics -
**PsyDAG**, Tuesday, January 19, 2010 at 11:20amWe do not do your homework for you. However, I will start you out.

a. Z = (x - mean)/standard deviation

Once you find the Z score, look it up in a table in the back of your stats text. The smaller portion column will give you the desired proportion.

I hope this helps.

**Answer this Question**

**Related Questions**

Statistics - Assume the weights of men are normally distributed having a mean of...

statistics - the weights of newborn babies are distributed normally, with the ...

statistics - dole pineapple inc. is concerned that the 16 ounce cans are ...

statistics - A specific study found that the average number of doctor visits per...

Statistics - Assume there are two lakes containing trout and the weights of the ...

Math - Ashely's mother will make 4 pineapple fruitcakes for a bake sale to raise...

statistics - The diameter of small Nerf balls manufactured at a factory in China...

statistics - A specific study found that the average number of doctor visits per...

statistics - The duration of time it takes General Motors to build a car is ...

Math (Statistics) - The SAT scores of a certain population of students are ...