A telephone company claims that the service calls which they receive are equally distributed among the five working days of the week. A survey of 111 randomly selected service calls was conducted. Is there enough evidence to refute the telephone company's claim that the number of service calls does not change from day-to-day? Days of the Week Number of CallsMon 15Tue 21Wed 26Thu 31Fri 18 A)State the null and alternative hypothesis. B)What does the null hypothesis indicate about the proportions of service calls received each day? C) State the null and alternative hypothesis in terms of the expected proportions for each category.
A telephone company claims that the service calls which they receive are equally distributed among the five working days of the week. A survey of 111 randomly selected service calls was conducted. Is there enough evidence to refute the telephone company's claim that the number of service calls does not change from day-to-day?
Days of the Week Number of Calls
Mon 15
Tue 21
Wed 26
Thu 31
Fri 18
A)State the null and alternative hypothesis.
B)What does the null hypothesis indicate about the proportions of service calls received each day?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images