Region Nominal Wage CPI Real Wage NCR 537.00 119.8 448.25 CAR 350.00 120.4 290.70 340.00 120.9 281.22 II 360.00 122.8 293.16 II 400.00 120.7 331.40 IV-A 400.00 120.4 332.23 IV-B 320.00 124.1 257.86 V 310.00 123.9 250.20 VI 395.00 123.2 320.62 VII 386.00 125.2 308.31 VII 315.00 125.7 250.60 IX 316.00 126.1 250.59 365.00 125.7 290.37 XI 396.00 122.3 323.79 XII 311.00 125.1 248.60 CARAGA 320.00 121.2 264.03 ARMM 280.00 127.9 218.92
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Find the sample standard deviation of the nominal wage and real wage,
respectively.
A. 3543.24;2759.38
B. 57.75; 50.96
C. 59.53; 52.53
D. 3334.81; 2597.06
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- The Record of a state-owned company indicated that of all vehicles undergoing emissions testing during the previous year , 70% passed on the first test. A random sample of 200 cars tested in the country durring the current year reveals that 62% passed the initial test. Does this dat asugget that the proportion for this country is less than the previous countrywide proportio ? Test the relevant hypothesis at the 5% level of significance. A) State the null and alternative hypotheses for the test B) What is the test statistics C) Calculate the value of the test Statistic for this test D) Determine the critical region(s) for this test E) State the conclusion of this test . Give a reason for your answerSimple random: Generating an interview list using a random number generator Stratified: randomly picking 2 employees from each of the departments/floors at the hospital. Cluster: randomly picking 3 departments/floors and using all the employees from those areas Systematic: walking down the halls and picking the employee in every-other room For example: Convenience: picking the first 10 employees to walk into the hospital. The convenience method is the least successful method of selecting a proper sample for a statistical study. However, in this situation we can say that using this method would allow us to complete our study quickly. A negative effect of using this method could be extreme bias of the responses. The first ten employees to enter the hospital may all be excited to get to their jobs and therefore have a high satisfaction level. Also, employees entering together may work in the same area of the hospital, therefore limiting the scope of the results to just one area…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…