Question

In: Statistics and Probability

You take a random sample of 12 bags (16 oz. each) of jelly beans. In your...

You take a random sample of 12 bags (16 oz. each) of jelly beans. In your study, the average number of jelly beans in a bag is 395 with a standard deviation of 35 beans. Because these bags are filled by a machine, these are known to be taken from a normal population.

Find and interpret a 96% confidence interval for the true mean number of jelly beans per 16 oz bag.

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

From a random sample of 16 bags of chips, sample mean weight is 500 grams and...
From a random sample of 16 bags of chips, sample mean weight is 500 grams and sample standard deviation is 3 grams. Assume that the population distribution is approximately normal. Answer the following questions 1 and 2. 1. Construct a 95% confidence interval to estimate the population mean weight. (i) State the assumptions, (ii) show your work and (iii) interpret the result in context of the problem. 2.  Suppose that you decide to collect a bigger sample to be more accurate....
We take a random sample of 16 scores from a Math Exam and the sample mean...
We take a random sample of 16 scores from a Math Exam and the sample mean is 80 (the population scores are normally distributed) . The known standard deviation = 16. What is the value of Lower Confidence Limit at 90% CI.
A random sample of 40 bags of flour is weighed. It is found that the sample...
A random sample of 40 bags of flour is weighed. It is found that the sample mean is 453.08 grams. All weights of the bags of flour have a population standard deviation of 5.42 grams. What is the lower limit of an 80% confidence interval for the population mean weight? Select one: A. No solution B. 451.983 grams C. 452.360 grams D. 452.405 grams After interviewing a sample of 100 residents of New Taipei City, you find that the mean...
A random sample of 40 bags of flour is weighed. It is found that the sample...
A random sample of 40 bags of flour is weighed. It is found that the sample mean is 453.08 gram. All weights of the bags of flour have a population standard deviation of 5.42 gm. What is the lower confidence limit (LCL) of an 80% confidence interval for the population mean weight?
Bags of whole coffee beans are filled automatically on a production line. A machine fills each...
Bags of whole coffee beans are filled automatically on a production line. A machine fills each bag so that the weight of coffee beans inside is normally distributed with a mean of 290 grams. The label on the bag, however, states that the weight of coffee beans inside is 283 grams. a. What is the standard deviation of bags of coffee beans, if 13% of the bags have a weight below what is stated on the label? b. New management...
A random sample of 36 cans of regular Coke had a sample mean of 12.19 oz...
A random sample of 36 cans of regular Coke had a sample mean of 12.19 oz with a standard deviation of 0.11 oz. A sample of 36 cans of regular Pepsi had a sample mean of 12.29 oz with a standard deviation of 0.09 oz. Find a 90% confidence interval for the difference in volume between cans of regular Coke and cans of regular Pepsi.
A group of students measure the length and width of a random sample of beans. They...
A group of students measure the length and width of a random sample of beans. They are interested in investigating the relationship between the length and width. Their summary statistics are displayed in the table below. All units, if applicable, are millimeters. Mean width: 7.647 Stdev width: 0.942 Mean height: 13.924 Stdev height: 1.703 Correlation coefficient: 0.7443 a) The students are interested in using the width of the beans to predict the height. Calculate the slope of the regression equation....
A group of students measure the length and width of a random sample of beans. They...
A group of students measure the length and width of a random sample of beans. They are interested in investigating the relationship between the length and width. Their summary statistics are displayed in the table below. All units, if applicable, are millimeters. Mean width: 7.439 Stdev width: 0.88 Mean height: 13.625 Stdev height: 1.825 Correlation coefficient: 0.7963 a) The students are interested in using the width of the beans to predict the height. Calculate the slope of the regression equation....
Goods Produced A B C D E Chips (bags) 0 10 12 14 16 Pretzels (bags)...
Goods Produced A B C D E Chips (bags) 0 10 12 14 16 Pretzels (bags) 50 40 30 20 0 How would a technological change that increases the production of only pretzels affect the production of chips? Explain
. Thenutritionlabelonabagofpotatochipssaysthataoneounceservingofpotatochipshas130calories. A random sample of 35 bags yielded a sample mean of 134 calories with...
. Thenutritionlabelonabagofpotatochipssaysthataoneounceservingofpotatochipshas130calories. A random sample of 35 bags yielded a sample mean of 134 calories with a standard deviation of 17 calories. Is there significant evidence that the nutrition label does not provide an accurate measure of calories in the bags of potato chips? Answer this question using the hypothesis testing framework. Explicitly give the p-value for your test.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT