A restaurant manager suspects that service declines during off-peak hours. To investigate, he selects a random sample of 100 customers who dined at his restaurant during peak hours and a random sample...





A restaurant manager suspects that service declines during off-peak hours. To investigate, he selects a random sample of 100 customers who dined at his restaurant during peak hours and a random sample of 70 customers who dined at his restaurant during off-peak hours. Each customer rated the service on a scale of 1 to 5, where 1 = highly dissatisfied and 5 = highly satisfied. The results are displayed in the table.







What are the appropriate hypotheses to determine if the distribution of response differs among all customers who dine at this restaurant during peak and off-peak hours?





a) H
0: There is a difference in the distribution of service ratings among all customers who dine at this restaurant during peak and off-peak hours.

Ha
: There is no difference in the distribution of service ratings among all customers who dine at this restaurant during peak and off-peak hours.



b) H
0: There is no difference in the distribution of service ratings among all customers who dine at this restaurant during peak and off-peak hours.

Ha
: There is a difference in the distribution of service ratings among all customers who dine at this restaurant during peak and off-peak hours.



c) H
0: There is a difference in the distribution of service ratings among the 100 customers who dined at this restaurant during peak hours and the 70 customers who dined at this restaurant during off-peak hours.

Ha
: There is no difference in the distribution of service ratings among the 100 customers who dined at this restaurant during peak hours and the 70 customers who dined at this restaurant during off-peak hours.



d) H
0: There is no difference in the distribution of service ratings among the 100 customers who dined at this restaurant during peak hours and the 70 customers who dined at this restaurant during off-peak hours.

Ha
: There is a difference in the distribution of service ratings among the 100 customers who dined at this restaurant during peak hours and the 70 customers who dined at this restaurant during off-peak hours.



Time of Meal<br>Peak<br>Off-Peak<br>5<br>13<br>8.<br>5<br>Rating<br>12<br>16<br>4<br>40<br>21<br>5<br>35<br>15<br>

Extracted text: Time of Meal Peak Off-Peak 5 13 8. 5 Rating 12 16 4 40 21 5 35 15
Jun 11, 2022
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