RHR/bpm 62 For the resting heart rate data: 63 ratio What level of measurement is the data? 65 20 Determine the sample size n. 68 76.4 Calculate the sample mean x. 68 74.5 Determine the median. 68 68 Determine the mode. 69 62 Determine the minimum. 69 94 Determine the maximum. 71 32 Calculate the range. 72 10.35 Calculate the sample standard deviation sx. 77 0.14 Calculate the sample Coefficient of Variation. 79 6.4 Determine the class width. Use 5 bins. 79 82 83 86 88 91 94 94 Bins Frequency RF 68.4 6 0.3 74.8 4 0.2 81.2 3 0.15 87.6 3 0.15 94 4 0.2 Sums: 20 1 Sketch a histogram of the relative frequency bimodal What is the shape of the distribution? 0.5 p(rhr ≤ 74.8) Construct a 95% confidence interval 76.4 What is the point est for the pop mean µ? 19 df = _How many degrees of freedom? 2.09 tc = _What is tc? 4.84 The error tolerance E = _______________ 71.56 ≤ µ ≤ 81.24 The 95% confidence interval No Distringuishable from 72? Perform a hypothesis test Ho: µ=72 H1: µ ≠ 72 0.05 alpha α 2.09 tc 1.9 The 95% confidence interval 0.07 0.93 Max c We fail to reject the null at 5% 5.00% At α = 0.10 we would reject Ho RHR BFI 62 10.8 0.78 slope 63 14.5 -35.18 intercept 65 16.4 positive directionality of correlation 68 5.5 22.77 If bpm = 74... 68 11.7 79.41 If bfi = 27... 68 30.5 0.696 r 69 11.3 moderate strength of correlation? 69 21.7 0.48 Calculate the coefficient of determination. 71 23.7 48.48% What % variation.... 72 33.5 yes Relationship between RHR and the BFI? 77 23.5 Biologist has a resting heart rate of 49 79 20.6 No Can bfi for the division biologist be predicted? 79 31.2 beyond data Why or why not? 82 17.8 Is biologist... 83 45.5 Fit ___ Fit? 86 34.9 ___ Not fit? 88 38.1 ___ Not determinable. 91 21.8 94 34 94 45.9