It is considered quite common to have feet of unequal length. In a sample of 10 healthy college students the right-foot and left-foot lengths are given (in mm). Length in mm mean Left foot (x) 260 280 262 259 268 256 257 256 262 240 260 10.077477638554 Right foot (y) 259 277 260 254 269 258 261 249 262 238 258.7 10.562512327408 d = x - y 1 3 2 -1 -2 -4 7 1.3 3.2676869155073: 2.

Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: Female: 92 69 89 55 95 98 67 55 58 61 57 63 56 55 78 61 64 81 86 89 67 85 88 92 74 92 93 79 78 71 Find the means. The mean for males is beats per minute and the mean for females is (Type integers or decimals rounded to one decimal place as needed.) beats per minute.

Answer all questions below

A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 122 137 158 114 156 143 99 112 115 152 Diastolic: 61 51 76 73 55 58 74 60 87 59 Find the means. The mean for systolic is mm Hg and the mean for diastolic is mm Hg. (Type integers or decimals rounded to one decimal place as needed.) ***

Determine whether the given value is from a discrete or continuous data set. An impact SUV has a gas tank that can hold 15.21 gal.

A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220 minutes per day using apps. We speculate that the average time spent using apps for Generation X smartphone users (aged 41-56 years) is less than the national average. The hypotheses are Ho: H = 220 minutes versus Ha: µ < 220 minutes. Summary results from R are provided. Summary Statistics Std. Dev (s) Mean Sample Size (n) 205 minutes 63.25 minutes 31

need range and standard deviation

Consider the following data set *; | -1|2|3 Yi | 3 |2|1 and the model y = a, + a1¤ Calculate the squared error (SE) for the choice a, = 8 and a1 = -1 Answer:

It is considered quite common to have feet of unequal length. In a sample of 10 healthy college students the right-foot and left-foot lengths are given (in mm).     Length in mm mean ss Left foot (xx) 268 274 258 259 256 256 264 263 269 270 263.7 6.3779132776932 Right foot (yy) 247 281 249 259 231 273 267 264 285 265 262.1 16.3737594949969 d=x−yd=x−y 21 -7 9 0 25 -17 -3 -1 -16 5 1.6 13.9459273226591 (a) Find the test statistic. (b) Test the claim at the 0.05 significance level. Positive critical value:  Negative critical value:  Is there sufficient data to support the claim?YesNo

A survey is carried out at a university to estimate the percentage of undergraduates living at home during the current term. What is the population? the parameter?