The following data was reported on total fe for four types of iron formation (1 = carbonate, 2 = silicate, 3 = magnetite, 4 = hematite).

1: 20.3 28.1 27.8 27.0 28.1 25.2 25.3 27.1 20.5 31.1
2: 26.4 24.0 26.2 20.2 23.7 34.0 17.1 26.8 23.7 24.7
3: 29.9 34.0 27.5 29.4 28.3 26.2 29.9 29.5 30.0 36.0
4: 37.2 44.2 34.1 30.3 31.9 33.1 34.1 32.9 36.3 25.5

carry out an analysis of variance f test at significance level 0.01. state the appropriate hypotheses.

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x