From the following scenarios, choose which will likely have no correlation. Answer \[ \begin{array}{l}\text { The weight of a dog and the number of commands known } \\ \text { The number of books an adult reads each month and the length of their hair } \\ \text { The weight of a dog and their daily food intake } \\ \text { The whild their height }\end{array} \]

Small sample: Twenty seven concrete blocks were sampled and tested for crushing strength in order to estimate the proportion that were sufficiently strong or a certain application. Twenty five of the 27 blocks were sufficiently strong. Use the small-sample method to construct an \( 80 \% \) confidence interval for the proportion of blocks that are sufficiently strong. Round the answers to at least three decimal places. An \( 80 \% \) confidence interval for the proportion of blocks that are sufficiently strong is

Assume that a sample is used to estimate a population mean \( \mu \). Find the \( 99.9 \% \) confidence interval for a sample of size 75 with a mean of 44.5 and a standard deviation of 20.7 . Enter your answer as an open- interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). \( 99.9 \% \) C.I. \( = \) Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

Smart phone: Among 251 cell phone owners aged \( 18-24 \) surveyed, 109 said their phone was an Android phone. Part: \( \mathbf{0 / 3} \) Part 1 of 3 (a) Find a point estimate for the proportion of cell phone owners aged 18 - 24 who have an Android phone. Round the answer to at least three decimal places. The point estimate for the proportion of cell phone owners aged \( 18-24 \) who have an Android phone is

This graph, which combines the characteristics of a stacked bar chart and a line chart, shows changes in car/truck production. Which conclusion is best supported by the data in the chart?A) Consumers have always preferred trucks to cars.B) Manufacturers think sedans and wagons Sedan/Wagon are a growing market.C) Truck SUVs have become an important part of the market. Car SUVD) Truck manufacturers make more money Truck SUV than car manufacturers.

Smart phone: Among 251 cell phone owners aged \( 18-24 \) surveyed, 109 said their phone was an Android phone. Part 1 of 3 (a) Find a point estimate for the proportion of cell phone owners aged 18 - 24 who have an Android phone. Round the answer to at least three decimal places. The point estimate for the proportion of cell phone owners aged \( 18-24 \) who have an Android phone is 0.434 . Part: \( \mathbf{1} / \mathbf{3} \quad \) Part 2 of 3 (b) Construct a \( 99.8 \% \) confidence interval for the proportion of cell phone owners aged \( 18-24 \) who have an Android phone. Round the answers to at least three decimal places. A \( 99.8 \% \) confidence interval for the proportion of cell phone owners aged \( 18-24 \) who have an Android phone is \( \square<p<\square \).