Are phone calls equally likely to occur any day of the week? The day of the week for each of 567 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 78 Monday 72 Tuesday 78 Wednesday 67 Thursday 112 Friday 88 Saturday 72 What is the correct statistical test to use? Select an answer Goodness-of-Fit Homogeneity Independence Paired t-test What are the null and alternative hypotheses? H0:H0: 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. H1:H1: Phone calls and days of the week are dependent. The distribution of phone calls is not uniform over the days of the week. The distribution of phone calls is uniform over the days of the week. Phone calls and days of the week are independent. 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 less than (or equal to) greater than αα Based on this, we should Select an answer fail to reject the null accept 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 insufficient evidence to conclude that phone calls and days of the week are dependent. There is sufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.

Are phone calls equally likely to occur any day of the week? The day of the week for each of 567 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 78 Monday 72 Tuesday 78 Wednesday 67 Thursday 112 Friday 88 Saturday 72 What is the correct statistical test to use? Select an answer Goodness-of-Fit Homogeneity Independence Paired t-test What are the null and alternative hypotheses? H0:H0: 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. H1:H1: Phone calls and days of the week are dependent. The distribution of phone calls is not uniform over the days of the week. The distribution of phone calls is uniform over the days of the week. Phone calls and days of the week are independent. 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 less than (or equal to) greater than αα Based on this, we should Select an answer fail to reject the null accept 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 insufficient evidence to conclude that phone calls and days of the week are dependent. There is sufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.

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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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 78

Monday 72

Tuesday 78

Wednesday 67

Thursday 112

Friday 88

Saturday 72
What is the correct statistical test to use?
Select an answer Goodness-of-Fit Homogeneity Independence Paired t-test
What are the null and alternative hypotheses?
H0:H0:
- 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.
H1:H1:
- Phone calls and days of the week are dependent.
- The distribution of phone calls is not uniform over the days of the week.
- The distribution of phone calls is uniform over the days of the week.
- Phone calls and days of the week are independent.
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 less than (or equal to) greater than αα
Based on this, we should Select an answer fail to reject the null accept 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 insufficient evidence to conclude that phone calls and days of the week are dependent.
- There is sufficient evidence to conclude that the distribution of phone calls is not uniform over the days of the week.

Outcome	Frequency	Expected Frequency
Sunday	78
Monday	72
Tuesday	78
Wednesday	67
Thursday	112
Friday	88
Saturday	72

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