Use the following cell phone airport data speeds (Mbps) from a particular network. Find P70- 0.1 0.3 0.3 0.4 0.4 0.5 0.5 0.5 0.6 0.7 0.8 0.9 0.9 0.9 1.1 1.1 1.4 1.5 2.1 2.2 2.3 2.6 2.7 2.7 2.8 3.4 3.9 4.7 5.1 5.8 6.3 7.2 7.7 7.8 8.4 8.9 10.2 10.8 11.8 12.9 13.1 13.1 14.7 14.8 14.8 P70= Mbps (Type an integer or a decimal. Do not round.)

A local construction company is trying to reduce costs. It found that the price of steel bars varies considerably from manufacturer to manufacturer. The table below shows the cost of one steel bar from different manufacturers. Calculate the IQR. Cost for One Steel Bar Emerson $4.31 Mannix $6.20 United $5.67 American $2.79 National $3.20 Pracox $3.57 Steelco $5.32 Cost per Steel Bar 7 6 4 3 2 1 O $2.47 O $2.53 O $4.32 O $5.36

The owner of a radio station wants to determine how much airtime songs take up. The owner collects the song length in seconds of 10 popular songs. The data are reproduced in the table below. Calculate the mode(s) using a TI-83. TI-83 plus, or TI-84 graphing calculator. Length of Songs in Seconds 279 219 298 134 206 293 165 227 230 212

FIND THE ANSWERS FOR B-2 and C. A survey found that Massachusetts residents spent an average of $861.75 on the lottery, more than three times the U.S. average. A researcher at a Boston think tank believes that Massachusetts residents spend less than this amount. He surveys 100 Massachusetts residents and asks them about their annual expenditures on the lottery. (You may find it useful to reference the t table.)   Click here for the Excel Data File a. Specify the competing hypotheses to test the researcher’s claim.multiple choice 1   H0: μ ≥ 861.75; HA: μ < 861.75   b-1. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 3 decimal places.) -0.863 b-2. Find the p-value.multiple choice 2 p-value < 0.01 0.01  p-value < 0.025 0.025  p-value < 0.05 0.05  p-value < 0.10 p-value  0.10 c. At α = 0.10, what is the conclusion?multiple choice 3 Reject H0; there is insufficient evidence…

Use the given conditions to write an equation for the line in point-slope form and in slope-intercept form. x-intercept = 315 == 15 and y-intercept = 1 Type the point-slope form of the equation of the line. 7 (Use integers or simplified fractions for any numbers in the equation.)

Answer the following questions regarding the population of Hamilton County in 2016. a. If you predict the population of Hamilton County in 2016, should you use the average growth rate of 2000-2009 or the average growth rate of 2009-2015? Explain your choice in a complete sentence.  b. Predict the population of Hamilton Country in 2016. Show your work. Express your answer in “thousand people” rounded to the nearest whole number.

An engineer wants to determine how the weight of a gas powered car, x, affects gas mileage, y. The accompanying days represent the weights of various domestic cars and their miles per gallon in the city for the most recent model year. weight                    Miles per (pounds), x           Gallon, y 3797                             16 3897                             16 2704                             24 3608                             20 3360                             22 3040                             22 3787                              17 2618                              24 3509                             18 3798                             16 3399                             17   interpret the slope y-intercept, if appropriate. Choose the correct answer below for y hat = -0.00661x + 41.80 a) A weightless car will get ____ miles per gallon, on average. It is not appropriate to interpret the slope.  b) for every pound added to the weight of the car, mileage in the city will…

The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 11.5 8.4 6.8 3.4 2.5 2.6 2.6 0.9 13.5 10.9 9.8 6.7 6.3 6.4 4.5 x = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the equation 0.83x + 3.99. Use this equation to answer the following; Special Note: I suggest you verify this equation by performing linear regression on your calculator. A) How many murders per 100,000 residents can be expected in a state with 8.4 thousand automatic weapons? Answer Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 7.3 thousand automatic weapons? Answer Round to 3 decimal places.

Suppose a researcher collects data on the air pollution levels, measured in milligrams per cubic meter, for both urban and rural areas in 35 states. The data is plotted with urban air pollution levels on the horizontal axis and rural air pollution levels on the vertical axis. Nevada is an outlier in the ?x‑direction. What must be true about this state? The urban air pollution levels for this state are much higher or lower than the rest of the states in the data set. The rural air pollution levels for this state are much higher or much lower than the rest of the states in the data set. This state is an influential observation. The rural air pollution levels for this state are much higher or lower than other states in the data set that have similar urban air pollution levels. The absolute value of the residual of this state is large.

Use the following cell phone airport data speeds (Mbps) from a particular network. Find P70- 0.6 먼 0.4 0.5 0.5 0.4 0.7 0.3 0.4 1.4 0.1 0.2 0.2 1.2 1.3 1.4 0.7 0.6 0.6 0.7 3.7 4.5 4.6 0.6 2.8 2.8 3.2 1.9 2.1 2.3 2.3 10.1 10.5 10.7 11.1 5.3 5.8 6.6 6.8 25.2 4.9 4.9 14.4 15.4 15.8 13.3 13.5 13.5 11.3 11.7 12.6 Mbps P70 = (Type an integer or a decimal. Do not round.) %3D