Reference no: EM132858235

A company wants to estimate how long it will take to produce 100 units of a product based on production rates in the past. Which statistical method would be most effective?

1.Hypothesis testing with a null hypothesis that the production time is greater than or equal to the mean

2.Hypothesis testing with a null hypothesis that the production time is less than or equal to the mean

3.Use a confidence interval with the past average production time as the mean

4..A regression with production as the independent variable

5.Use a confidence interval with the average of all production lines for all products as the mean

A company wants to consider the age groups of customers that shop before noon. Which of the following graphs would be most helpful to make that determination?

1.A histogram of the ages of shoppers before noon

2.A pie chart of the ages of shoppers before noon

3.A scatter plot of shoppers on the x axis and times on the y axis

4.A histogram of the ages of all shoppers

5.A Pareto chart with times of shoppers throughout day