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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

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BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Research suggests that romantic background music increases the likelihood that a woman will give her phone number to a man she has just met (Guéguen & Jacob. 2010). In the study, women spent time in a waiting room with background music playing. In one condition, the music was a popular love song and for the other condition the music was a neutral song. The participant was then moved to another room in which she was instructed to discuss two food products with a young man. The men were part of the study and were selected because they had been rated as average in attractiveness. The experimenter returned to end the study and asked the pair to wait alone for a few minutes. During this time, the man used a scripted line to ask the woman for her phone number. The following table presents data similar to those obtained in the study, showing the number of women who did or did not give their numbers for each music condition.

 

Phone

Number

No

Number

 
Romantic Music 21 19 40
Neutral Music 9 31 40
  30 50  

Is there a significant difference between the two types of music? Test with α = .05.

To determine
If the number of women who gave their phone number was independent of the music playing in the room.

Explanation

Given info:

The below table shows that the type of music and whether the women give their phone numbers.

  Phone no No number Total
Romantic 21 19 40
Neutral 9 31 40
Total 30 50 80

Calculation:

The hypotheses are given below:

Null hypothesis:

H0: There is no relationship between the type of music and whether the women give their phone numbers.

Alternative hypothesis:

H1: There is relationship between the type of music and whether the women give their phone numbers.

Observed values:

  Phone no No number Total
Romantic 21 19 40
Neutral 9 31 40
Total 30 50 80

Expected values =fr×feft

  Phone no No number Total
Romantic 15 25 40
Neutral 15 25 40
Total

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