Reference no: EM13216492
1) A random sample of size 100 was taken from a population. A 94% confidence interval to estimate the mean of the population was computed based on the sample data. The confidence interval for the mean is: (107.62,129.75). What is the z-value that was used in the computation. Round your z-value to 2 decimal places.
To answer the question input only the actual number. Do not include units. Do not give your answer in sentence form -- just include the numerical answer rounded to exactly 2 decimal places.
2) The U.S. Food and Drug Administration (FDA) performed a study that compared the carbohydrate content (as a percentage of weight) of several major brands of corn and potato chips. Fourteen brands of corn chips were sampled and 14 brands of potato chips were sampled. Data was collected and the following 95% confidence interval was computed for the difference in means. Intrepret the 95% confidence interval for the difference in the mean carbohydrate content between the Corn Chip and Potato Chip groups.
The C.I. is: (27.292,39.836)
where {mu}_1 = the average carbohydrate content as a percentage of weight in corn chips.
and {mu}_2 = the average carbohydrate content as a percentage of weight in potato chips.
Select the best answer below.
A. We are 95% confident that there is no statistically significant difference in the average carbohydrate content as a percentage of weight between corn chips and potato chips.
B. We are 95% confident that the average carbohydrate content as a percentage of weight in corn chips is lower than the average carbohydrate content as a percentage of weight in potato chips.
C. We are 95% confident that the average carbohydrate content as a percentage of weight in corn chips is higher than the average carbohydrate content as a percentage of weight in potato chips.
D. None of these are correct.
|
What is the species and why is it endangered
: Remember to cite your work properly and to use scientific facts and data to support your work. In other words, I expect at least 5 cited sources to be used, including, at a minimum, three published journal articles as references.
|
|
Explain in terms of heat budget and seasonality
: Explain in terms of heat budget and seasonality why the hurricane season in the North Atlantic is from June through December.
|
|
What were historical limitations of previous classifications
: What were the historical limitations of previous classifications systems that led to and solved by the three domain systems that is in use today?
|
|
How is position and personal power defined
: According to Yukl (2013), how can leaders acquire and lose power within their organization? How is position and personal power defined in your current or in a past employment environment? Is it possible to possess a high position without personal ..
|
|
What is the z-value that was used in the computation
: What is the z-value that was used in the computation. Round your z-value to 2 decimal places and difference in the mean carbohydrate content between the Corn Chip and Potato Chip groups.
|
|
What is a mast cell
: What is a mast cell? What role do mast cells play in the immune response?
|
|
Figure out the genotype for junior
: Mom and Dad are worried about their baby being color blind. Dad is normal but Mom recently learned she is a carrier. Hint: You can figure out the genotype for junior.
|
|
Explain a client and customer in terms of duties
: Fiduciary responsibilities are critical part of which relationship---customer or client? Why? Define a client and define a customer in terms of duties of the real estate agent?
|
|
What if some people can get no donuts
: A robot travels from the lower left corner to the upper right corner of an m × n grid. It can only move right and up. How many unique paths can it take? (Hint: How many steps must any path have?)
|