Z-cutoff values for the rejection region

Assignment Help Basic Statistics

Reference no: EM13111629

1. A company is filling bags of rock salt to a level of 50 pounds. It believes that all bags are filled correctly, but would like to use a hypothesis test with an alpha of 0.05 to check this belief. The company will be using samples of 100 bags from each run to do the test. State the null and alternative hypotheses:

Is this a two tailed, upper tail, or lower tail test?

What is or are the Z-cutoff values for the rejection region(s)?

What is the correct equation for calculating Z for this problem?

2. In a similar problem, a company wants to verify that it is putting at least two pounds of coffee into its two pound coffee cans. Samples of 20 cans will be taken from each run to make the test at an alpha of 0.05. What type of test should be performed?

Z test t test

How many degrees of freedom does this test have?

State the null and alternative hypotheses?

Is this a two-tailed, upper tail, or lower tail test?

What is/are the critical values for the rejection region?

What is the correct equation for calculating Z for a problem involving proportions?

Reference no: EM13111629

Questions Cloud

Write lewis structures for reactants : Free radicals are also important in many environmentally significant reactions. For example, photochemical smog, which forms as a result of the action of sunlight on air pollutants, is formed in part by the following two steps.

Which of the following are a result of muscle contraction : Which of the following is/are a result of muscle contraction.

P-value and price of gasoline : NBC TV news, in a segment on the price of gasoline, reported last evening that the mean price nationwide is $1.50 per gallon for self-serve regular unleaded.

What events occur during contraction skeletal muscle fiber : What events occur during contraction of skeletal muscle fibers?

Z-cutoff values for the rejection region : A company is filling bags of rock salt to a level of 50 pounds. It believes that all bags are filled correctly, but would like to use a hypothesis test with an alpha of 0.05 to check this belief.

Which of the following is a result of muscle contraction : Which of the following is a result of muscle contraction?

What appendages of the skin play a role in thermoregulation : What appendages of the skin play a role in thermoregulation?

Write a report about gypsy parts : Determine what kind of problem or need would prompt a company to give you such an assignment

Discussion on greenhouse effect : The Greenhouse Effect - how the sun's visible light is converted into trapped infra red light and heat, causing the planet to warm up.

User Account

All Pages