Author Question: The temperature readings for 20 fall days (degrees Fahrenheit) in Wheeling, West Virginia, are ... (Read 68 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
The temperature readings for 20 fall days (degrees Fahrenheit) in Wheeling, West Virginia, are normally distributed with a mean of 5.5 degrees and a standard deviation of 1.5 degrees. Determine the 90 confidence interval estimate for the fall mean temperature.

Question 2

Consider the following statistics of a multiple regression model: Total variation in y = 1000 . SSE = 300, n = 50, and k = 4.
 a. Determine the standard error of estimate.
  b. Determine the coefficient of determination.
  c. Determine the F-statistic.



ambernicolefink

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

LCL = 4.9 degrees and UCL = 6.05 degrees.

Answer to Question 2

a. s = 2.582
b. R2 = 70
c. F = MSR/MSE = 26.25



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

For a complete list of videos, visit our video library