This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The income range of attendees at a research conference is gathered as upper, middle, and low ... (Read 92 times)

james0929

  • Hero Member
  • *****
  • Posts: 586
on: Aug 1, 2018
The income range of attendees at a research conference is gathered as upper, middle,
  and low levels. What type of data is collected?
 
  A) Nominal
  B) Ordinal
  C) Interval
  D) Ratio

Question 2

For randomly selected adults, IQ scores are normally distributed with a standard deviation of 15.
 
  The scores of 14 randomly selected college students are listed below. Use a 0.10 significance level to test the claim that the standard deviation of IQ scores of college students is less than 15.
   115 128 107 109 116 124 135
   127 115 104 118 126 129 133


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Yixagurpuldink

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 1, 2018
Answer to Question 1

Thanks for sharing, assignments makes me feel like end of world..

Answer to Question 2

Test statistic: X2 = 5.571. Critical values: X2 = 7.042. Reject . There is sufficient evidence to support the claim that IQ scores of college students have a standard deviation smaller than 15.


james0929

  • Member
  • Posts: 586
Reply 2 on: Aug 1, 2018
Wow, this really help

ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

A Bottlenose Dolphin (Tursiops truncatus) surfs the wave of a research boat on the Banana River, nea A Bottlenose Dolphin (Tursiops truncatus) surfs the wave of a research boat on the Banana River, nea
Catherine Opie, Untitled #13 (Spring), from Somewhere in the Middle. Catherine Opie, Untitled #13 (Spring), from Somewhere in the Middle.
One of the rats in the research reported on BioFoods. One of the rats in the research reported on BioFoods.
Man-in-the-middle attack Man-in-the-middle attack
Range for Functions Range for Functions
Philip wants to supplement his pension by $415 per month with income from his investments. His ... Philip wants to supplement his pension by $415 per month with income from his investments. His ...
Video: Structure of a Ribosome

For a complete list of videos, visit our video library