e mean value of land and buildings per acre from a sample of farms is $1300, with a standard deviation of $100. he data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose nd and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any the data values very unusual (more than three standard deviations from the mean)? 321 $1587 $1109 $959 $1492 $1458 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply.

Find the range, vanance, and standard deviation for the given sample data. Include appropriate units in the results. Listed below are the measured radiation absorption rates (in Wikg) corresponding to various cell phone models. If one of each model is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use? 1.16 0.82 0.51 0.69 1.11 0.82 0.69 0.75 0.52 0.53 1.34

Find the standard deviation.. Round to one more place than the data 7,19,20,8,17, 14, 8, 20, 12 O A. 5.1 O B. 1.7 O C. 5.4 O D. 5.7

Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.05 to test for a difference between the weights of discarded paper​ (in pounds) and weights of discarded plastic​ (in pounds).   LOADING... Click the icon to view the data. In this​ example, μd is the mean value of the differences d for the population of all pairs of​ data, where each individual difference d is defined as the weight of discarded paper minus the weight of discarded plastic for a household. What are the null and alternative hypotheses for the hypothesis​ test?     A. H0​: μd≠0 H1​: μd>0   B. H0​: μd=0 H1​: μd<0   C. H0​: μd=0 H1​: μd≠0   D. H0​: μd≠0 H1​:  μd=0     Household Paper Plastic   1   6.44   8.40     2   7.72   3.86     3   3.27   0.63     4   9.19   3.74     5   14.33   6.43     6   11.08   12.47     7…

The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean u = $1.506 and standard deviation o = $1.004. Click the icon to view the frequency distribution for the tax rates. Frequency distribution of cigarette tax rates Tax Rate Frequency 0.00–0.49 7 0.50-0.99 14 1.00–1.49 7 1.50–1.99 2.00–2.49 5 2.50–2.99 5 3.00–3.49 3.50–3.99 1 4.00-4.49 1

Which of the following five statistics are commonly used together to determine the shape of a distribution? Five answers correct. All or nothing credit.   1. The minimum   2. Variance   3. The 2nd quartile   4. The maximum   5. Coefficient of variation   6. Interquartile range   7. The 1st quartile   8. The 3rd quartile   9. Range   10. Standard deviation

The incomes of trainees at a local mill are normally distributed with a mean of $1,100 and a standard deviation of $150. What percentage of trainees earn more than $1,300 a month? Group of answer choices 9.18% 40.82% 90.82% 35.31%

Find the mean, median, standard deviation, and variance of the sample data. Also, from the original data set, find the values of the range and sample size. Identify the modal class (the one with the highest frequency). The statistics should be rounded properly- to the nearest hundredth