About 32% of all the laptop computers sold in an electronics store have hard disks made by western digital, i. e., . in a specific shipment, a total of laptop computers are received. treat these 15 laptop computers as a random sample and use to denote the number of them with hard disks made by western digital in this sample. keep at least 4 decimal digits if the result has more decimal digits

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

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