_7. Age (in years) of students 8. Ice cream flavor preference Years of important historical events 10. Instructors test classification as Easy, Difficult, or Impossible
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- What is a sample space?Prepare a frequency distribution table to present the blood pressure of 32 patients who visited the Hospital El Buen Samaritano today in the morning: 58, 77, 36, 55, 63, 68, 33, 41, 78, 26, 69, 53, 39, 80, 53, 15, 47, 33, 81, 54, 70, 33, 29, 74, 71, 66, 63, 70, 22, 45, 76, 90. Just set the limits and frequency in the table .Suppose you want to determine the mean number of cans of soda drunk each month by students in their twenties at your school. Describe a possible sampling method in three to five complete sentences. Make the description detailed.
- The price per share of stock for a sample of companies was recorded at the beginning of the first financial quarter and then again at the end of the first financial quarter. How stocks perform during the first quarter is an indicator of what is ahead for the stock market and the economy. Use the sample data in the file StockQuarter to answer the following. Click on the datafile logo to reference the data. Beginning of 1st end of 1stCompany Quarter QuarterBank of New York Mellon 53.82 54.19 Kraft Foods 77.02 55.70 E.I. du Pont de Nemours and Company 109.00 102.57 Consolidated Edison 83.58 79.95 Johnson & Johnson 139.23 126.01 Union Pacific…Each March, the Current Population Survey (CPS) is expanded to gather a wider variety of information than what is collected in the monthly reports. Suppose in one March survey, we are interested in participants whose highest level of education is a bachelor’s degree and who are between the ages of 25 and 64. It turns out that 14,959 of the survey respondents fall into this category. Think of them as a population. A) To select an SRS of these people, how would you assign labels? B) Use table 7.1, starting at line 107 choose the first three members of the SRS.Prepare a frequency distribution table to present the blood pressure of 32 patients who visited the Good Samaritan Hospital today morning: 58, 77, 36, 55, 63, 68, 33, 41, 78, 26, 69, 53 , 39, 80, 53, 15, 47, 33, 81, 54, 70, 33, 29, 74, 71, 66, 63, 70, 22, 45, 76, 90.Just set the limits and frequency in the table.
- You are the cadet Industrial Engineer who was to check on work standards. A certain assembly task has a prescribednormal time of 25 seconds, with an allowance of 10 seconds, such that it is standardized that 95% of workers shouldbe able to finish the task within 35 seconds. The following 36 randomly timed instances of workers’ assembly times(in seconds) are available for your audit.23, 18, 27, 47, 29, 24, 18, 46, 31, 36, 22, 18, 26, 32, 15, 27, 26, 21,37, 30, 15, 19, 12, 27, 18, 17, 14, 17, 36, 42, 27, 20, 15, 26, 29, 19Use a 5% level of significance for the following:a) Is the standard deviation of the sample data consistent with the standard time of 35 secs?b) Does the data show evidence that the mean time to assemble has shifted? c) What practical implications do your results in (a) and (b) mean for the established work standardof 35 seconds? (in 50 words)d) Give the highest possible median (to the nearest second) that we could accept with 95% certainty.The Census Bureau Web site gives several choices for "average income" in its historical income data. In 2006, the median income of American households was $48,201. The mean household income was $66,570. The median income of families was $58,407, and the mean family income was $77,315. The Census Bureau says, “Households consist of all people who occupy a housing unit. The term ‘family’ refers to a group of two or more people related by birth, marriage, or adoption who reside together.” Identify the reason for mean incomes for households being higher than median incomes for households.Identify the sampling techniques used in each scenario. A student committee in the biology department was formed by randomly choosing 3 biology measures from every level of students, that is first year, second year, third year... etc.
- Your place of employment is trying to determine whether to allow its employees to work from home for2 days a week. Knowing that you’ve previously taken a statistics course, your boss asks you to “figure itout”. You create a survey to gauge employee interest in this area.1. Formerly, your place of employment has tried to give surveys to everyone, a census, but only a fewpeople responded to the email. Your new plan is to randomly choose some employees and administerthe survey yourself. You put everyone’s name on a numbered list and randomly choose numbers untilyou have your sample. What form of sampling is being described here?2. Suppose you want to estimate the percentage of employees who want to work from home. Doingsome research on the internet, you find a recent study that found that 72% of employees prefer a hybridremote-office model. Using that value as your sample proportion, ?̂, estimate how many people youwould need to survey in order to estimate the percentage in your company…A fragile product will be transported by road or rail. Since the railway is cheaper, this transportation route will be preferred if the breakage rate is less than 5% in the railway. In the table below, the amount of products transported by both ways and the transportationThe number of broken ones is given. Accordingly, which transportation route should be preferred at the 5% significance level?(46, 47, 49, 49, 51, 53, 54, 54, 55, 55, 59 1st 3rd quartile??