Question

In: Statistics and Probability

A manufacturer claims that the average weight of a bar of chocolate is 3.53 ounces. We...

A manufacturer claims that the average weight of a bar of chocolate is 3.53 ounces. We take a random sample of 18 chocolate bars, and the sample has an average weight of 3.5 ounces, with a standard deviation of 0.4 ounces. Is there sufficient evidence to claim that the manufacturer is cheating on the weight? I need with more explanation please

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Exercise 4. (20pts) Chocolate Bar Calories The average number of calories in a 1.5-ounce chocolate bar...
Exercise 4. (20pts) Chocolate Bar Calories The average number of calories in a 1.5-ounce chocolate bar is 225. Suppose that the distribution of calories is approximately normal with σ = 10 . Find the probability that a randomly selected chocolate bar will have. (4a) Between 200 and 220 calories. Draw picture (4b) Less than 200 calories
A chocolate bar manufacturer with stores in most country towns and cities is interested in trying...
A chocolate bar manufacturer with stores in most country towns and cities is interested in trying to estimate how daily sales are influenced by the price of their product. To do this, the company randomly chooses 6 stores in country towns and cities and offers the chocolate bar at different prices. Using chocolate bar sales as the dependent variable, the company will conduct a simple linear regression on the data below: City Price ($) (X) Sales (Y) Toowoomba 1.30 100...
The average number of calories in a 1.5 ounce chocolate bar is 225. Suppose that the...
The average number of calories in a 1.5 ounce chocolate bar is 225. Suppose that the distribution of calories is *approximately* normal with a population standard deviation of 10. Find the probability that the randomly selected chocolate bar will have (a) Less than 200 calories (b) More than 200 calories (c) Between 200 and 220 calories
The company manufactures chocolate bars with nominal weight of 115 g per bar. In order to...
The company manufactures chocolate bars with nominal weight of 115 g per bar. In order to to avoid risk of short changing, the mean weight is set as 117 g and SD of 2 g. Assuming that 40 chocolate bars are selected, 97% of the sample means will be between what value? ( give the upper and lower value)
The company manufactures chocolate bars with nominal weight of 115 g per bar. In order to...
The company manufactures chocolate bars with nominal weight of 115 g per bar. In order to to avoid risk of short changing, the mean weight is set as 117 g and SD of 2 g. What is the probability that : (a) a random chocolate bar weighs between 116 gram and 120 gram? (b) a particular sample mean would be less than 116.5 millimeters chosen of 40 random samples of chocolate bar.
. A bottling company is supposed to fill bottles with an average weight of 16 ounces....
. A bottling company is supposed to fill bottles with an average weight of 16 ounces. The company randomly selects several bottles and weighs the liquid. The weights are given below. Weights: 16.05    15.91     15.88     16.02     15.95     15.73     15.69     16.01 a) Determine a 98% confidence interval for the population mean. b) Determine a 95% confidence interval for μ
A sample of 144 cans of coffee showed an average weight of 16 ounces. The standard...
A sample of 144 cans of coffee showed an average weight of 16 ounces. The standard deviation of the population is known to be 1.4 ounces.             a.Construct a 90% confidence interval for the mean of the population.             b.Construct a 99% confidence interval for the mean of the population.
A packaging system fills boxes to an average weight of 17 ounces with a standard deviation...
A packaging system fills boxes to an average weight of 17 ounces with a standard deviation of 0.5 ounce. It is reasonable to assume that the weights are normally distributed. Calculate the 1st, 2nd, and 3rd quartiles of the box weight. (You may find it useful to reference the z table. Round "z" value to 3 decimal places and final answers to 2 decimal places.) 1st Quartile= 2nd Quartile= 3rd Quartile=
Packages of sugar bags for Sweeter Sugar Inc. have an average weight of 16 ounces and a standard deviation of 0.2 ounces
9. Packages of sugar bags for Sweeter Sugar Inc. have an average weight of 16 ounces and a standard deviation of 0.2 ounces. The weights of the sugar packages are normally distributed. What is the probability that 16 randomly selected packages will have a weight in excess of 16.075 ounces? A. 0.9332 B. 0.9110 C. 0.3520 D. 0.0668 E. 0.0500 10. Suppose that 50 percent of the voters in a particular region support a candidate. Find the probability that a sample of...
we are told a newborn weights 152 ounces . How much is the weight in Grams?             ...
we are told a newborn weights 152 ounces . How much is the weight in Grams?              Using ratio and proportion then Using dimensional analysis
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT