Are phone calls equally likely to occur any day of the week? The day of the week for each of 385 randomlyselected 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 theWeekOutcome Frequency Expected FrequencySunday 59Monday 50Tuesday 43Wednesday 60Thursday 79Friday 58Saturday 36b. What is the correct statistical test to use?Goodness-of-Fitc. What are the null and alternative hypotheses?Ho:The distribution of phone calls is not uniform over the days of the week.Phone calls and days of the week are independent.The distribution of phone calls is uniform over the days of the week.Phone calls and days of the week are dependent. H₁: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 dependent.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=g. The p-value is Select an answerh. Based on this, we should Select an answeri. Thus, the final conclusion is...να(Please show your answer to three decimal places.)(Please show your answer to four decimal places.)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 uniformover the days of the week.There is insufficient evidence to conclude that phone calls and days of the week aredependent.There is insufficient evidence to conclude that the distribution of phone calls is not uniformover the days of the week.There is sufficient evidence to conclude that the distribution of phone calls is uniform overthe days of the week.

The provided information is as follows:The total number of randomly selected phone calls was…

Answered: Are phone calls equally likely to occur…

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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what is the median for parents?
Suppose a survey of 931 business owners found that 23% bought flood insurance. Which part of the survey represents the descriptive branch of statistics? Make an inference based on the results of the survey. Choose the best statement of the descriptive statistic in the problem. O A. Most business owners do not buy flood insurance. B. There is no association between business owners and buying flood insurance. OC. 931 business owners were surveyed. O D. 23% of business owners in the sample bought flood insurance. Choose the best inference from the given information. OA. 23% of business owners in the sample bought flood insurance. OB. 931 business owners were surveyed. OC. Most business owners do not buy flood insurance. D. There is no association between business owners and buying flood insurance.
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← The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. is 2: ? Actress (years) 27 27 Actor (years) 56 35 2 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). View an example In this example, is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: H0 year(s) H₁: H0 year(s) (Type integers or decimals. Do not round.) Identify the test statistic. t=…
The General Social Survey is an annual survey given to a random selection of about 1500 adults in the United States. Among the many questions asked are "What is the highest level of education you've completed?" and "If you're employed full-time, how many hours do you spend working at your job during a typical week?" In a recent year, 1079 respondents answered both questions. The summary statistics are given in the chart below. (The sample data consist of the times, in hours per week, that were given by the respondents.) Sample Sample Sample size Groups mean variance Less than h.s. High school Bachelor's 258 40.9 101.8 263 41.8 97.5 270 42.2 94.4 Graduate 288 43.0 98.7 Send data to calculator Send data to Excel To decide if there are any differences in the mean hours per week worked by these different groups, we can perform a one-way, independent-samples ANOVA test. Such a test uses the following statistic. Variation between the samples F= Variation within the samples For the data from…
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