This topic contains a solution. Click here to go to the answer

Author Question: A recent survey found that 71 of all adults over 50 wear sunglasses for driving. In a random sample ... (Read 61 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
A recent survey found that 71 of all adults over 50 wear sunglasses for driving. In a random sample of 60 adults over 50, what is the mean and standard deviation of those that wear sunglasses?
 
  A) mean: 42.6; standard deviation: 3.51482574 B) mean: 17.4; standard deviation: 3.51482574
  C) mean: 17.4; standard deviation: 6.52686755 D) mean: 42.6; standard deviation: 6.52686755

Question 2

n = 183, x = 158; 95 level
 
  A) 0.813 to 0.914 B) 0.824 to 0.903 C) 0.814 to 0.913 D) 0.823 to 0.904



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Answer to Question 1

A

Answer to Question 2

C




panfilo

  • Member
  • Posts: 572
Reply 2 on: Jul 25, 2018
Thanks for the timely response, appreciate it


Bigfoot1984

  • Member
  • Posts: 321
Reply 3 on: Yesterday
:D TYSM

 

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?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

For a complete list of videos, visit our video library