Author Question: In a hypothesis test the decision was made to not reject the null hypothesis. Which type of mistake ... (Read 463 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
In a hypothesis test the decision was made to not reject the null hypothesis. Which type of mistake could have been made?
 a. Type 1.
  b. Type 2.
  c. Type 1 if it's a one-sided test and Type 2 if it's a two-sided test.
  d. Type 2 if it's a one-sided test and Type 1 if it's a two-sided test.

Question 2

Items produced by a certain process are supposed to weigh 90 grams. However, the process is such that there is variability in the items produced and they do not all weigh exactly 90 grams. The distribution of weights is normal with a mean of 89.8 grams and a standard deviation of 1.1 gram. Suppose we have a random sample of 2 of these items. What is the probability that both these items weigh more than 91 grams?



juicepod

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

B

Answer to Question 2

0.0190



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

For a complete list of videos, visit our video library