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- Identify the population and propose an appropriate sample for the following survey question: How do the parents of the students at Rosedale Academy feel aboout visiting Canada? 1. State the population 2. State a specific an detailed samplePlease see the attached image with the question below: Thank you. a. Identify the population for this investigation. b. Identify the sample for this investigation. c. Identify the sampling method that was used to select the sample. Give one advantage and one disadvantage of using this sampling method. d. For each of the following charts: stem-and-leaf diagram, box-and-whisker diagram, bar chart and histogram, indicate whether or not the chart would be suitable for presenting the data displayed in Table 1 above. Give reason for your answer. e. Use Table 1 to calculate:i.the mean employees’ morale. ii.the median iii.The modeThe number of AIDS cases reported for Santa Clara County, California is broken down by race in the table below. Source: "HIV/AIDS Epidemiology Santa Clara County", Santa Clara County Public Health Department, May 2011. Race Cases White 2290 Hispanic 1109 Black 478 Asian/Pacific Islander 235 Total 4112 Directions: Conduct a chi-square test for goodness-of-fit to determine whether or not the occurrence of AIDS cases is consistent with the race distribution of Santa Clara County. 1. Choose the correct null and alternative hypotheses. O Ho: The distribution of AIDS cases is consistent with the race distribution in County. H.: The distribution of AIDS cases is different from the race distribution in Santa Clara County. Clara O Ho: The distribution of AIDS cases is different from the race distribution in Santa Clara County. Ha: The distribution of AIDS cases is consistent with the race distribution in Santa Clara County. 2. Compute the test statistic. The population distribution of Santa…
- The method of selecting a desirable portion from a population which describes the characteristics of whole population is called as a. Sampling b. Segregating c. Dividing d. ImplantingIdentify the following data set: the rates at which all of the cashiers scan products for a store on a study about the cashiers for the day. O a) Sample O b) PopulationChoose the letter of the correct answer. It is sometimes called area sampling, it applies on a geographical basis. a. systematic sampling b. lottery sampling c. stratified random sampling d. cluster sampling
- Identify whether the following data set is a population or a sample. A news reporter is conducting a study of Phoenix High School teachers. The reporter determined the average annual salary of all of the teachers at Phoenix High School. a) Sample b) PopulationA tabular arrangement for classifying data into different groups is called. a. Class mean b. Standard deviation c. Arithmetic mean d. Frequency distributiona) A tube of toothpaste is set to be automatically filled to 6.35 ounces. Every four hours 4 tubes were sampled and the following data was recorded, Table 3a. Sample HOMES6789 2 3 4 5 X R 6.35 2.0 6.36 1.0 6.37 1.7 6.39 0.9 6.34 1.2 6.30 1.6 6.32 1.8 6.33 1.3 6.37 1.6 Sample X R Sample 6.35 1.3 19 10 11 6.33 6.32 6.36 PP 12 13 FP ∞69S7WNTOR 14 15 16 17 18 bobo wi Table 3a 1.8 1.0 1.8 6.33 1.5 23 6.34 1.7 24 6.34 1.4 25 6.35 1.1 6.36 1.8 CHELE X R 6.38 1.3 20 6.35 1.6 6.39 1.0 21 22 6.32 1.8 6.33 6.40 6.34 i. Using this data, find the UCL and LCL for the data ii. Plot the X-bar and R-charts. HANNE b) Describe four basic categories of quality costs. 1.7 2.0 1.5 iii. Explain and justify whether the quality control process is adequate. iv. What other remedies could the quality control department implement?
