Calculate the critical value and df

Reference no: EM13154025

"A machine is designed to fill jars with 16 ounces of coffee. A consumer suspects that the machine is not filling the jars completely. A sample of 8 jars has a mean of 15.6 ounces and a standard deviation of 0.3 ounce. Is there enough evidence to support the consumer's conjecture at a = 0.05?" (adapted from Bluman, 1998, p. 381).

a) First, identify the alternative and the null hypotheses.

b) Secondly, calculate the critical value and df.

c) Next, use the appropriate formula.

d) Finally, decide whether or not to reject the null hypothesis.

Reference no: EM13154025

Questions Cloud

What is agency theory : How would you use portfolio management to assess the risk and return of an investment? Predict how the results would be different based on different risk preferences. In the concept of managerial accountability, what legal compliance issues could com..

Calculate the molar concentration of nano3 : Calculate the molar concentration of NaNO3 and the mass percent of NaNO3 in the solution. What is the mole fraction of NaNO3 in the solution?

Outline the three most likely reasons : Analyze and outline the three most likely reasons for growing food insecurity in the United States. Do you think food insecurity is on the rise in the U.S.; how about in your own community

Find the molecular formula for this compound : A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 °C and 110 kPa, find the molecular formula for this compound.

Calculate the critical value and df : A sample of 8 jars has a mean of 15.6 ounces and a standard deviation of 0.3 ounce. Is there enough evidence to support the consumer's conjecture at a = 0.05? First, identify the alternative and the null hypotheses.

System disappear facing the challenge of the internet? : Will independent agency system disappear facing the challenge of the internet?

Determining personal after-tax yield : An investor recently purchased a corporate bond which yields 9 percent. The investor is in the 36 percent combined federal and state tax bracket. What is the bond's after-tax yield?

Marker for tradable emissions : Assume that the marker for tradable emissions permits by power plants has been operating efficiently for several years. An engineering firm then invents a lower cost device for pollution abatement. What happens to the equilibrium market price of a tr..

The u.s retirement system described as a three legged stool : Why is the U.S retirement system described as a three legged stool? Is it reliable?

User Account

All Pages