« previous next »

Author Question: A random sample of 25 statistics examinations was selected. The average score in the sample was 76 ... (Read 113 times)

Metfan725

  • Hero Member
  • *****
  • Posts: 552
on: Jun 24, 2018
A random sample of 25 statistics examinations was selected. The average score in the sample was 76 with a variance of 144 . Assuming the scores are normally distributed, the 99 confidence interval for the population average examination score is _____.
 a. 70.02 to 81.98
  b. 69.82 to 82.18
  c. 70.06 to 81.94
  d. 69.29 to 82.71

Question 2

Excel's EXPON.DIST function has how many inputs?
 a. 2
  b. 3
  c. 4
  d. 5


Beatricemm

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Selected Minerals for Treating Nutritional and Electrolyte Disorders Selected Minerals for Treating Nutritional and Electrolyte Disorders
In the Tai Forest a female chimp demonstrates a skill once thought to be unique to humans. Here she In the Tai Forest a female chimp demonstrates a skill once thought to be unique to humans. Here she
Selected Minerals Used for Pharmactherapy Selected Minerals Used for Pharmactherapy
Selected Drugs for Psoriasis and Related Disorders Selected Drugs for Psoriasis and Related Disorders
Selected Cephalosporins Selected Cephalosporins
(a) A turbidometry detector measures laser light directly across from the light source. The sample, ... (a) A turbidometry detector measures laser light directly across from the light source. The sample, ...
Video: hGH (protein synthesis, growth and development)

For a complete list of videos, visit our video library