Question

Calories in a Standard Size Candy Bar Estimate the standard deviation in calories for these randomly...

Calories in a Standard Size Candy Bar

Estimate the standard deviation in calories for these randomly selected standard-size candy bars with 95% confidence. (The number of calories is listed for each.) Assume the variable is normally distributed.

220 220 210 230 275 260 240 220 240 240 280 230 280 260

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
The average number of calories in a 1.5 ounce chocolate bar is 225.3 with standard deviation...
The average number of calories in a 1.5 ounce chocolate bar is 225.3 with standard deviation of 9.8 calories. The distribution of calories are approximately normal. Select 14 chocolate bars at random, What is the probability that a random sample of 14 chocolate bars will result in a sample mean less than 240 calories?
a nutritionist claims that the standard deviation of a number of calories in 1 tablespoon of...
a nutritionist claims that the standard deviation of a number of calories in 1 tablespoon of the major brands of pancake syrup is 45. A sample of major brands of pancake syrup is selected, and the number of calories is shown. At 0.02, can the claim be rejected? 73, 210, 100, 200, 100, 220, 210, 100, 240, 200, 100, 210, 100, 210, 100, 210, 100, 60 a) what is the sample standard deviation from the raw data? b) list the...
Easter candy expenditure per consumer is normally distributed with a standard deviation of $4.01. A candy...
Easter candy expenditure per consumer is normally distributed with a standard deviation of $4.01. A candy manufacturer claims that the average Easter candy expenditure per consumer is no less than $30. Fifteen consumers were randomly selected. The average Easter candy expenditure per consumer was found to be $28.67 with a standard deviation of $3.50. Can you reject the candy manufacturer's claim at α=.05? What is the 99% confidence interval for the true average Easter candy expenditure per consumer (in $)?...
Easter candy expenditure per consumer is normally distributed with a standard deviation of $2.51. A candy...
Easter candy expenditure per consumer is normally distributed with a standard deviation of $2.51. A candy manufacturer claims that the average Easter candy expenditure per consumer is no more than $20. Fifteen consumers were randomly selected. The average Easter candy expenditure per consumer was found to be $21.22 with a standard deviation of $3.00. Can you reject the candy manufacturer's claim at α=.05? What is the 99% confidence interval for the true average Easter candy expenditure per consumer (in $)?...
A manufacturer sells metal bars. Their longest bar is designed to be 10’ long (120 inches)....
A manufacturer sells metal bars. Their longest bar is designed to be 10’ long (120 inches). The quality control department randomly collects 41 bars from the production line and measures their length. These 41 bars had an average length of 120.3 inches with a standard deviation of 1.05 in. assume the lengths of the bars are normally distributed. Conduct the appropriate 95% confidence interval to determine if the standard deviation of the lengths of bars is less than 2.51 inches.
Easter candy expenditure per consumer is normally distributed with a standard deviation of $3.26. A candy...
Easter candy expenditure per consumer is normally distributed with a standard deviation of $3.26. A candy manufacturer claims that the average Easter candy expenditure per consumer is no less than $25. Seventeen consumers were randomly selected. The average Easter candy expenditure per consumer was found to be $23.86 with a standard deviation of $4.30. Can you reject the candy manufacturer's claim at α=.01? For the hypothesis stated above, what is the test statistic?
Easter candy expenditure per consumer is normally distributed with a standard deviation of $3.26. A candy...
Easter candy expenditure per consumer is normally distributed with a standard deviation of $3.26. A candy manufacturer claims that the average Easter candy expenditure per consumer is no less than $25. Seventeen consumers were randomly selected. The average Easter candy expenditure per consumer was found to be $23.86 with a standard deviation of $4.30. Can you reject the candy manufacturer's claim at α=.01? For the hypothesis stated above, what is the test statistic? a. -2.6033 b. -0.3497 c. -1.0931 d....
50 Observations are randomly selected from a normally distributed population with a population standard deviation of...
50 Observations are randomly selected from a normally distributed population with a population standard deviation of 25 and a sample mean of 175. Find a 95% confidence interval for the mean.
3. A candy bar manufacturer is interested in estimating sales using price of the candy bar...
3. A candy bar manufacturer is interested in estimating sales using price of the candy bar in different cities. To do this the manufacturer randomly selected 6 small cities and offered the candy at different price. Using candy bar sales as dependent variable, the manufacturer will conduct simple regression using the data below: Price (X) Sales (Y) XY X² Y² 1.3 100 130 1.69 10000 1.6 90 144 2.56 8100 1.8 90 162 3.24 8100 2 40 80 4 1600...
A random sample of 10 chocolate energy bars of a certain brand has, on average, 220...
A random sample of 10 chocolate energy bars of a certain brand has, on average, 220 calories per bar, with a standard deviation of 25 calories. Construct a 95% confidence interval for the true mean calo- rie content of this brand of energy bar. Assume that the distribution of the calorie content is approximately normal. (a) (202.12, 237.88) (b) (200.09, 240.91) (c) (210.72, 232.16) (d) (208.67, 235.01)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT