1. Research has suggested that breakfast is the most important meal of the day.
ID: 2948472 • Letter: 1
Question
1. Research has suggested that breakfast is the most important meal of the day. A nutritionist randomly selects 100 individuals and asks them: "Did you have breakfast this morning? Yes or no?" (a) What is an appropriate method for graphing the data? b) Why is it appropriate? 2. A pet store owner is interested in the number of pets owned by her customers. She takes a random sample of 100 customers and asks them: "How many pets do you own?" (a) What is an appropriate method for graphing the data? (b) Why is it appropriate? 3. Choose the best answer. Justify for full credit (a) The Knot.com surveyed nearly 13,000 couples, who married in 2017, and asked how much they spent on their wedding. The average amount of money spent on was $33,391. The value $33,391 is a: (i) parameter (ii) statistic ii) cannot be determined from information provided. (b) A marketing agent asked people to rank the quality of a new soap on a scale from l (poor) to 5 (excellent). The level of this measurement is (i) nominal (ii) ordinal (iii) interval (iv) ratio 4. A school district wanted to assess the effectiveness of a new reading readiness program for 1 graders. The school district is divided into the individual first grade classrooms and 10 classrooms are randomly selected. All of the children in each of the 10 selected classrooms are (a) What type of sampling method is being used? (b) Please explain your answerExplanation / Answer
Q1. a) The appropriate method for graphing the data is Bar graph. Since the data is binomial, it is classifies as yes or no. The bar graph is the best choice to compare the two response.
Q2.a) The appropriate method for graphing the data is pie-chart. Since the pie-chart gives the best choice to compare the response. It gives the percentage of customers who owns the number of pets.
Q3.a)The value $33391 is a statistics. Since the value $33391 is the average amount of money spent on the wedding. Average describes the sample from which inference about the population is drawn.
Statistics describes the sample. that is sample mean, variance etc.
b) The level of measurment given in the example is ordinal. Since in the example the level of measurment is given in the order of the values.
Q4. The type of sampling method used here is simple random sampling without replacement. Out of the different first grade classrooms 10 classrooms are randomly selected without replacement. From this selected random sample all the children are assessed.
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