13 Natural births randomly selected from four hospitals in a highly populated region occurred on the days of the week​ (in the order of Monday through​ Sunday) with the frequencies 52​, 64​, 72​, 58​, 55​, 44​, 55.    Does it appear that such births occur on the days of the week with equal​ frequency?       Construct the relative frequency distribution.   Day Relative Frequency Monday nothing​% Tuesday nothing​% Wednesday nothing​% Thursday nothing​% Friday nothing​% Saturday nothing​% Sunday nothing​% ​(Type integers or decimals. Round to two decimal places as​ needed.) Let the frequencies be substantially different if any frequency is at least twice any other frequency. Does it appear that these births occur on the days of the week with equal​ frequency?

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The following table shows the results of a survey of 500 authors by a publishing company. Established Authors New Authors Total 160 340 Total 500 Compute the relative frequency of the given event if an author as specified is chosen at random. A successful author is established. Successful Unsuccessful 35 70 105 125 270 395

The following data represents the age of 30 lottery winners. 22 44 53 64 64 73 73 76 30-39 40-49 Complete the frequency distribution for the data. Age Frequency 20-29 50-59 60-69 31 45 70-79 39 46 46 55 60 66 71 80-89 43 44 46 52 61 63 71 72 86 Enter an integer or decimal number [more..l I

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A particular report included the following table classifying 816 fatal bicycle accidents that occurred in a certain year according to the time of day the accident occurred. Time of Day Number of Accidents midnight to 3 a.m. 46 3 a.m. to 6 a.m. 50 6 a.m. to 9 a.m. 85 9 a.m. to noon 72 noon to 3 p.m. 79 3 p.m. to 6 p.m. 157 6 p.m. to 9 p.m. 193 9 p.m. to midnight 134 For purposes of this exercise, assume that these 816 bicycle accidents are a random sample of fatal bicycle accidents. Do these data support the hypothesis that fatal bicycle accidents are not equally likely to occur in each of the 3-hour time periods used to construct the table? Test the relevant hypotheses using a significance level of a = 0.05. Let P1. P2: P3: P4 Ps: Pe: P7, and Pg be the proportions of accidents occurring in the eight different time periods. State the appropriate null and alternative hypotheses. O Ho: P1 = P2 = P3 = P4 = Ps = P6 = P7 = Pg = 816 H: Ho is not true. O Ho: P1 = P2 = P3 = P4 = P5 = P6 = P7 =…

When 192 students were asked to pick a number from 1 to 10, the number of students selecting each number were as shown in the table. Number 1 2 3 4 5 6 7 8 9 10 Total Frequency 2 13 20 25 16 22 56 19 14 5 192 What is the approximate probability that someone asked to pick a number from 1 to 10 will pick one of the two extremes, 1 or 10? (Round your answer to four decimal places.)