Are phone calls equally likely to occur any day of the week? The day of the week for each of 637 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.01 significance level.Complete the rest of the table by filling in the expected frequencies:Frequencies of Phone Calls for Each Day of the WeekOutcomeFrequencyExpected FrequencySunday127 Monday88 Tuesday75 Wednesday81 Thursday90 Friday88 Saturday88 What is the correct statistical test to use?Select an answer Paired t-test Independence Goodness-of-Fit Homogeneity What are the null and alternative hypotheses?H0:H0: 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.Phone calls and days of the week are independent.Phone calls and days of the week are dependent.H1:H1: 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.The degrees of freedom = The test-statistic for this data = (Please show your answer to three decimal places.) The p-value for this sample = (Please show your answer to four decimal places.) The p-value is Select an answer greater than less than (or equal to) αα Based on this, we should Select an answer accept the null fail to reject the null reject the null Thus, the final conclusion is...There is sufficient evidence to conclude that phone calls and days of the week are dependent.There is insufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.There is sufficient evidence to conclude that the distribution of phone calls is uniform over the days of the week.There is sufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.There is insufficient evidence to conclude that phone calls and days of the week are dependent.

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Description: Are phone calls equally likely to occur any day of the week? The day of the week for each of 637 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.01 significance level.Complete the rest of the t

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Are phone calls equally likely to occur any day of the week? The day of the week for each of 637 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.01 significance level.

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 127

Monday 88

Tuesday 75

Wednesday 81

Thursday 90

Friday 88

Saturday 88
What is the correct statistical test to use?
Select an answer Paired t-test Independence Goodness-of-Fit Homogeneity
What are the null and alternative hypotheses?
H0:H0:
- 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.
- Phone calls and days of the week are independent.
- Phone calls and days of the week are dependent.
H1:H1:
- 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.
The degrees of freedom =
The test-statistic for this data = (Please show your answer to three decimal places.)
The p-value for this sample = (Please show your answer to four decimal places.)
The p-value is Select an answer greater than less than (or equal to) αα
Based on this, we should Select an answer accept the null fail to reject the null reject the null
Thus, the final conclusion is...
- There is sufficient evidence to conclude that phone calls and days of the week are dependent.
- There is insufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.
- There is sufficient evidence to conclude that the distribution of phone calls is uniform over the days of the week.
- There is sufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.
- There is insufficient evidence to conclude that phone calls and days of the week are dependent.

Outcome	Frequency	Expected Frequency
Sunday	127
Monday	88
Tuesday	75
Wednesday	81
Thursday	90
Friday	88
Saturday	88

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