Are phone calls equally likely to occur any day of the week? The day of the week for each of 350 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.05 significance level.Complete the rest of the table by filling in the expected frequencies:Frequencies of Phone Calls for Each Day of the WeekOutcomeFrequencyExpected FrequencySunday30 Monday49 Tuesday53 Wednesday52 Thursday40 Friday61 Saturday65 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: Phone calls and days of the week are dependent.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.H1:H1: The distribution of phone calls is not uniform over the days of the week.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 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 reject the null fail to reject the null accept the null Thus, the final conclusion is...There is insufficient 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 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.There is sufficient evidence to conclude that the distribution of phone calls is uniform over the days of the week.

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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 350 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.05 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 30

Monday 49

Tuesday 53

Wednesday 52

Thursday 40

Friday 61

Saturday 65
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:
- Phone calls and days of the week are dependent.
- 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.
H1:H1:
- The distribution of phone calls is not uniform over the days of the week.
- 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 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 reject the null fail to reject the null accept the null
Thus, the final conclusion is...
- There is insufficient 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 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.
- There is sufficient evidence to conclude that the distribution of phone calls is uniform over the days of the week.

Outcome	Frequency	Expected Frequency
Sunday	30
Monday	49
Tuesday	53
Wednesday	52
Thursday	40
Friday	61
Saturday	65

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