ocate the following percentile under the normal curve and find its corresponding t-value. Sketch and label its curve. 1. P95 degree of freedom 6 2. P99 degree of freedom 13 3. P89 degree of freedom 10

A violin student records the number of hours they spend practicing during each of ten consecutive weeks. 5.4 4.4 What is the first quartile for this data? 4.4 4.9 2.7 4.5 5.9 2.1 3.9 3.4

In a study on running and happiness, runners indicated the number of miles they ran in a day and their subsequent score on a Happiness Survey (higher score = greater happiness). Runner # of miles (x) Happiness Score (y) 1 16 12 2 4 3 12 14 4 2 8 For these data: The mean of miles run is: 8.50 The mean of the Happiness scores is: 10.00 The standard deviation of the Miles scores is: 5.72 The standard deviation of the Happiness scores is: 3.16 In your submission, please include a copy of the SPSS or Excel output and answer the following: A. What is the r and r? value? B. Based on Pearson's r and r2 value, describe the relationship (direction/strength) that exists between # of miles run and Happiness scores. C. Create a scatterplot for the data using Excel or SPSS (include output in your submission). D. Insert the prediction line from Excel/SPSS on your scatterplot.

The cheetah is the fastest land mammal and is highly specialized to run down prey. The cheetah often exceeds speeds of 60 miles per hour​ (mph) and is capable of speeds above 72 mph. The accompanying table contains a sample of the top speeds of 35 cheetahs. The sample mean and sample standard deviation of these speeds are 59.59 mph and 4.32 ​mph, respectively. A histogram of the speeds is​ bell-shaped. Complete parts​ (a) through​ (d) below.   LOADING... Click the icon to view the top speeds of cheetahs. a. Is it reasonable to apply the empirical rule to estimate the percentages of observations that lie within​ one, two, and three standard deviations to either side of the​ mean?     A. It is reasonable to apply the empirical rule. The data is quantitative and the histogram of the data is​ bell-shaped; therefore, the empirical rule applies.   B. It is not reasonable to apply the empirical rule. The data is​ quantitative, but the value of k takes on values less than​ 1;…