« previous next »

Author Question: In a sample of 200 racquetball players, 120 indicated they prefer Penn racquetballs, 75 favored ... (Read 52 times)

natalie2426

  • Hero Member
  • *****
  • Posts: 524
on: Jun 24, 2018
In a sample of 200 racquetball players, 120 indicated they prefer Penn racquetballs, 75 favored Ektelon, and 5 were indifferent. We want to use the sign test to determine if there is evidence of a significant difference in the preferences for the two types of racquetballs. Hint: Use the continuity correction factor.
 a. Provide the hypotheses to be tested.
  b. Compute the mean.
  c. Compute the standard deviation.
  d.. At a 5 level of significance, test to determine if there is evidence of a significant difference in the preferences for the two types of racquetballs.

Question 2

A(n) _____ is an unusually small or unusually large data value.
 a. sample statistic
  b. median
  c. z-score
  d. outlier


TheDev123

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. H0: p = .5
Ha: p  .5
b. 97.5
c. 6.982
d.. Test Statistic z = 3.15; p-value = .0016 < .05, therefore reject H0 and conclude that there is a significant difference in the preferences for the two types of racquetballs.

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

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

(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, ...
Sample prescription for chlorhexidine. Sample prescription for chlorhexidine.
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
A sample of work by a Grade 4 student with a specific learning disorder A sample of work by a Grade 4 student with a specific learning disorder
A random sample of 87 airline pilots recruited by an airline service had an average yearly ... A random sample of 87 airline pilots recruited by an airline service had an average yearly ...
A sample of reef biodiversity A sample of reef biodiversity
Video: The primary factors that affect circulation - MABP, CO and SVR

For a complete list of videos, visit our video library