Posted by **lollzzz** on Saturday, October 30, 2010 at 11:27pm.

In order to make sure that their bags of chips are of sufficient weight, the Chipper Chip Company try to fill their 200 gram bags of chips with more than 203 grams. You have been given the task of investigating what proportion of bags produced do have over 203 grams of chips in them. You sample 112 bags and find that the proportion of these with over 203 grams is 0.77. You decide to construct a 95% confidence interval for the population proportion of chip bags that have more than 203 grams of chips.

a)Calculate the lower bound for this confidence interval. Give your answer as a decimal to 3 decimal places.

Lower bound for confidence interval =

b)Calculate the upper bound for this confidence interval. Give your answer as a decimal to 3 decimal places.

Upper bound for confidence interval =

A quality inspector proposes that the true proportion of chip bags with over 203 grams of chips is 0.742.

c)With a level of confidence of 95%, can/ cannot you rule out this possibility.

## Answer This Question

## Related Questions

- stats - In order to make sure that their bags of chips are of sufficient weight...
- math - a potato chip manufacturer has been accused of shortchanging their ...
- Finance - 1) A potato chip manufacturer has been accused of shortchanging their ...
- Math. - Ashanti and Maria went to the store to buy snacks for their back to ...
- 7th Grade Math - Sally wants to buy some chips for her party. The bags of chips ...
- MATH (ASAP) - Jay and Tia are planning to buy snack chips. • Individual bags of ...
- 8th grade math - A box contains 5 bags of potato chips, 4 bags of pretzels and 1...
- Math - Crunchy Corn Chips are packaged in bags labeled "net weight 10 ounces." ...
- statistics - The weight of corn chips dispensed into a 19-ounce bag by the ...
- algebra - a bag contains 4 red chips, 2 blue chips and 5 green chips. A chip is ...

More Related Questions