level. a. Complete the rest of the table by filling in the expected frequencies: Frequencies of Phone Calls for Each Day of the Week Outcome Frequency Expected Frequency Sunday 75 Monday 85 Tuesday 93 Wednesday 84 Thursday 73 Friday 113 Saturday 93 b. What is the correct statistical test to use? ✓ Goodness-of-Fit c. What are the null and alternative hypotheses? Ho: d Phone calls and days of the week are dependent. Phone calls and days of the week are independent. The distribution of phone calls is uniform over the days of the week. The distribution of phone calls is not uniform over the days of the week. H₁: The distribution of phone calls is uniform over the days of the week. Phone calls and days of the week are dependent. The distribution of phone calls is not uniform over the days of the week. Phone calls and days of the week are independent. The degrees of freedom =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4AGP
Question

Need D E F

Are phone calls equally likely to occur any day of the week? The day of the week for each of 616 randomly
selected phone calls was observed. The results are displayed in the table below. Use an a = 0.01 significance
level.
a. Complete the rest of the table by filling in the expected frequencies:
Frequencies of Phone Calls for Each Day of the
Week
Outcome Frequency Expected Frequency
Sunday 75
Monday 85
Tuesday 93
Wednesday 84
Thursday 73
Friday 113
Saturday 93
b. What is the correct statistical test to use?
Goodness-of-Fit
c. What are the null and alternative hypotheses?
Ho:
Phone calls and days of the week are dependent.
Phone calls and days of the week are independent.
The distribution of phone calls is uniform over the days of the week.
The distribution of phone calls is not uniform over the days of the week.
H₁:
The distribution of phone calls is uniform over the days of the week.
Phone calls and days of the week are dependent.
The distribution of phone calls is not uniform over the days of the week.
Phone calls and days of the week are independent.
=
d. The degrees of freedom
e. The test-statistic for this data =
f. The p-value for this sample=
(Please show your answer to three decimal places.)
(Please show your answer to four decimal places.)
Transcribed Image Text:Are phone calls equally likely to occur any day of the week? The day of the week for each of 616 randomly selected phone calls was observed. The results are displayed in the table below. Use an a = 0.01 significance level. a. Complete the rest of the table by filling in the expected frequencies: Frequencies of Phone Calls for Each Day of the Week Outcome Frequency Expected Frequency Sunday 75 Monday 85 Tuesday 93 Wednesday 84 Thursday 73 Friday 113 Saturday 93 b. What is the correct statistical test to use? Goodness-of-Fit c. What are the null and alternative hypotheses? Ho: Phone calls and days of the week are dependent. Phone calls and days of the week are independent. The distribution of phone calls is uniform over the days of the week. The distribution of phone calls is not uniform over the days of the week. H₁: The distribution of phone calls is uniform over the days of the week. Phone calls and days of the week are dependent. The distribution of phone calls is not uniform over the days of the week. Phone calls and days of the week are independent. = d. The degrees of freedom e. The test-statistic for this data = f. The p-value for this sample= (Please show your answer to three decimal places.) (Please show your answer to four decimal places.)
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt