First Prize Bike ComponentWeight (kg)Weight (g)
Frame (carbon)1.07 kg1070 g
Wheels1.52 kg1520 g
Brakes0.31 kg310 g
Saddle0.26 kg260 g
Pedals0.18 kg180 g
Other parts5.80 kg5800 g
What is the combined weight of the first prize bike in kg?

kg
The first prize bike’s frame weighs 1070g.

The second prize bike’s frame weighs 75g less.

What is the weight of the second prize bike’s frame in g?

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to