Q1. The following data show the rankings of 11 states based on expenditure per student (rank 1 is the highest) and the student teacher ratio (rank 1 is the highest. State Expenditure S/T Ratio Arizona 10 Colorado 8 Florida 4 Idaho 2 11 lowa 6 4 Louisiana 11 Massachusetts 1 Nebraska 7 North Dakota South Dakota 10 Washington 3 What is the Spearman rank-correlation coefficient? Q1.

Gender and Frequency of Status Updates on Facebook The Pew Research Center conducted a survey of randomly sampled American adults, asking them about their use of social networking sites such as Facebook. The table below shows the self-reported frequency of status updates on Facebook by gender. Are frequency of status updates and gender related? chi-square statistic = i p-value = i Conclusion: ĮStatus/Gender Ho- Every day 3 - 5 days/week 1 - 2 days/week Every few weeks Less often Total Male Female Total 42 46 70 77 88 386 59 79 79 151 186 491 130 105 149 Round your answer for the chi-square statistic to one decimal place, and your answer for the p-value to three decimal places. 156 337 877 Table 1 Gender and frequency of status updates on Facebook

Data on the cost (millions of dollars) and the running time (minutes) for films of a particular season are summarized in the computer output shown to the right and the plots below. Complete parts a and b Click the icon to view the plots. a) Check the assumptions and conditions for inference Select all that apply The residual plot and the scatterplot show consistent variability The scatterplot looks straight enough The residuals look random The residuals are nearly normal None of the assumptions and conditions for inference are satisfied. b) Find a 95% confidence interval for the slope and interpret it. m% confident that the cost of making longer movies (Round to two decimal places as needed. Use ascending order.) Dependent variable is: Budget(SM) squared-24.0% R s 25.12 with 20-2-18 degrees of freedom Variable Coefficient SE(Coeff) t-ratio P-value intercept -23.5882 Run Time 0.665602 0.2788 34.12 -0.69 0.4982 2.39 0.0282 at a rate of between and milion dollars per minute Plots 120 Run…

Question: Does the age distribution of laying hens varies between different species? Find the type of analysis and the studied population used to answer the question above information to help you: type of analysis: choose the right type of analysis to answer the questions   studied population: describe which population is concerned in each question (Ex: cows of all regions, or cows in X region, etc.)