Question

1) A sample of 61 small bags of the same brand of candies was selected. Assume...

1) A sample of 61 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is normal. The weight of each bag was then recorded. The mean weight was two ounces with a standard deviation of 0.12 ounces. The population standard deviation is known to be 0.1 ounce.

a) (8 points) Construct a 90% confidence interval for the population mean weight of the candies.

b) (2 points) Explain in a complete sentence what the confidence interval means.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A sample of 18 small bags of the same brand of candies was selected. Assume that...
A sample of 18 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is normal. The weight of each bag was then recorded. The mean weight was 3 ounces with a standard deviation of 0.12 ounces. The population standard deviation is known to be 0.1 ounce. NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that...
A sample of 15 small bags of Skittles was selected. The mean weight of the sample...
A sample of 15 small bags of Skittles was selected. The mean weight of the sample of bags was 2 ounces and the standard deviation was 0.12 ounces. The population standard deviation is known to be 0.1 ounces. (Assume the population distribution of bag weights is normal) a) Construct a 95% confidence interval estimating the true mean weight of the candy bags. (4 decimal places b) What is the margin of error for this confidence interval? c) Interpret your confidence...
SunDrop Candies Inc claims that their 3 ounce bag of candies contains over 90 pieces of...
SunDrop Candies Inc claims that their 3 ounce bag of candies contains over 90 pieces of candy. A consumer group does not think this claim is accurate and obtains a simple random sample of 26, 3 ounce, bags of the SunDrop Candies. The number of candies in each bag is recorded. Find a 95% confidence interval for the mean number of candies contained in a 3 ounce bag of SunDrop Candies. Here is the data: total 89 90 84 89...
You measure 33 watermelons' weights, and find they have a mean weight of 61 ounces. Assume...
You measure 33 watermelons' weights, and find they have a mean weight of 61 ounces. Assume the population standard deviation is 14.9 ounces. Based on this, construct a 99% confidence interval for the true population mean watermelon weight. Round your answers to two decimal places. Enter your answers in the form: Sample Mean ± Margin of Error  
Potato chip bags are labeled as containing 9 ounces of potato chips. To determine the accuracy...
Potato chip bags are labeled as containing 9 ounces of potato chips. To determine the accuracy of this label, a simple random sample of 37 bags was taken. The sample mean was 8.73 ounces and the sample standard deviation was 0.18 ounces. Construct a 98 % confidence interval for the population mean weight of bags of potato chips. a) Give the critical value, ??. b) Compute the standard error, ?? ̅. c) Calculate the maximal margin of error, ?. d)...
Assume that a sample is used to estimate a population mean μ μ . Find the...
Assume that a sample is used to estimate a population mean μ μ . Find the 90% confidence interval for a sample of size 485 with a mean of 63.9 and a standard deviation of 13.1. Enter your answers accurate to four decimal places. Confidence Interval = ( , ) LicenseQuestion 18. Points possible: 1 Unlimited attempts. Post this question to forum Incorrect but can retry You measure 50 textbooks' weights, and find they have a mean weight of 75...
Bags of a certain brand of potato chips say that the net weight of the contents...
Bags of a certain brand of potato chips say that the net weight of the contents is 35.6 grams. Assume that the standard deviation of the individual bag weights is 5.2 grams. A quality control engineer selects a random sample of 35 bags. The mean weight of these 35 bags turns out to be 33.6 grams. If the mean and standard deviation of individual bags is reported correctly, what is the probability that a random sample of 35 bags has...
You measure 22 dogs' weights, and find they have a mean weight of 42 ounces. Assume...
You measure 22 dogs' weights, and find they have a mean weight of 42 ounces. Assume the population standard deviation is 2.2 ounces. Based on this, construct a 90% confidence interval for the true population mean dog weight.
you measure 25 turtles weights, and find they have a mean weight of 45 ounces. assume...
you measure 25 turtles weights, and find they have a mean weight of 45 ounces. assume the population standard deviation is 4.2 ounces. Based on this, construct a 90% confidence interval for the true population mean turtle weight.
A process produces bags of refined sugar. The weights of the contents of these bags are...
A process produces bags of refined sugar. The weights of the contents of these bags are normally distributed with a standard deviation of 1.2 ounces. The contents of a random sample of twenty five bags had a mean weight of 19.8 ounces. Find a 98% confidence interval for the true mean weight for all bags of sugar produced by the process. interpret the results
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT