By selecting a smaller alpha level, it _____.
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Q: Listed below are amounts of strontium-90 (in millibecquerels, or mBq) in a simple random sample of…
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Q: Listed below are amounts of strontium-90 (in millibecquerels, or mBq) in a simple random sample of…
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Q: Listed below are amounts of strontium-90 (in millibecquerels, or mBq) in a simple random sample of…
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By selecting a smaller alpha level, it _____.
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- A study of fox rabies in a country gave the following information about different regions and the occurrence of rabies in each region. A random sample of n1 = 16 locations in region I gave the following information about the number of cases of fox rabies near that location. x1: Region I Data 2 8 8 8 6 8 8 1 3 3 3 2 5 1 4 6 A second random sample of n2 = 15 locations in region II gave the following information about the number of cases of fox rabies near that location. x2: Region II Data 1 1 5 1 4 8 5 4 4 4 2 2 5 6 9 (i) Use a calculator with sample mean and sample standard deviation keys to calculate x1 and s1 in region I, and x2 and s2 in region II. (Round your answers to two decimal places.) x1 = s1 = x2 = s2 = (ii) Does this information indicate that there is a difference (either way) in the mean number of cases of fox rabies between the two regions? Use a 5% level of significance. (Assume the distribution of rabies cases in both regions is…3.2 Evaluate the value of e²dz using Simpson's rule.A researcher was interested whether an individual's preference in political party affiliation was influenced by their level of education and gender. A random sample of participants were recruited, and preferences were scored from 0 - 10 (0 meaning no preference, 10 meaning greater preference). The researcher then divided participants by gender (1 = male/2 = female) and then again by level of education (1 = some school/2 = college/3 = university). Assume alpha at 0.05. Gender Education Level Political Interest 1 10 1 1 9. 1 2 2 1 1 1 1 1 1 4 4 1 9. 1 3 8 What is the dependent variable? What is the appropriate type of statistical analysis to run? What is the conclusion? Please write in APA format.
- A manufacturing company employs two inspecting devices to sample a fraction of their output for quality control purposes. The first inspection monitor is able to accurately detect 99.3% of the defective items it receives, whereas the second is able to do so in 99.7% of the cases. Assume that four defective items are produced and sent out for inspection. Let X and Y denote the number of items that will be identified as defective by inspecting devices 1 and 2, respectively. Determine the following. 1) fxy(x,y) 2) fx (x)3) fY|2 4) E(x)Show all workCompute E(310) for the following model, where & wn(0, 0.16), i.e., a white noise process with mean zero and variance 0.16. Please give the exact answer. 1 Me=Mt-2+ Ct, 30 = 1.A nutritionist is looking at the connection between hours of TV watched and choice of sugary snacks in children identified as at risk for obesity. He asks children to document the number of hours of TV they watch and the number of sugary snacks they eat each day as shown in the first three columns of the following table. In this table, fill in the missing values in the XY column, and then calculate ΣXY. Child Hours of TV Watched (X) Number of Sugary Snacks Eaten (Y) XY A 3 3 9 B 1 3 C 2 1 2 D 4 2 8 E 5 4 ΣXY =42 Fill in the missing values in the X² column of the following table, and then calculate ΣX². Child Hours of TV Watched (X) Number of Sugary Snacks Eaten (Y) X² A 3 3 9 B 1 3 1 C 2 1 D 4 2 16 E 5 4 ΣX² =55 Fill in the missing values in the X – 1 column and the (X – 1)² column of the following table, and then calculate Σ(X – 1)². Child Hours of TV Watched (X)…
- Listed below are amounts of strontium-90 (in millibecquerels, or mBq) in a simple random sample of baby teeth obtained from residents in a region born after 1979. Use the given data to construct a boxplot and identify the 5-number summary. 123 125 127 131 133 135 138 141 145 146 D 150 152 154 155 157 164 166 168 170 175 The 5-number summary is . || | and (Use ascending order. Type integers or decimals. Do not round.) , all in mBq. Which boxplot below represents the data? O A. OB. 120 140 180 100 180 120 140 16o Strontium-90 (mBq) 160 200 A 200 Strontium-90 (mBq) OC. OD. 120 140 160 180 100 120 140 160 180 200 Strontium-90 (mBq) Strontium-90 (mBq)A population consists of the following N= 6 scores: 0, 4, 6, 1, 3, and 5. Compute u and o for the population. Find the z-score for each score in the population. Transform the original population into a new population of N=6 scores with µ = 50 and o = 10.Samples of four different chocolate chip cookies show the following numbers of calories for the suggested servings of each brand. At α = 0.05, is there a difference in the number of calories for the different brands?
- Listed below are amounts of strontium-90 (in millibecquerels, or mBq) in a simple random sample of baby teeth obtained from residents in a region born after 1979. Use the given data to construct a boxplot and identify the 5-number summary. 122 141 123 142 125 144 130 147 131 149 i 133 154 *** The 5-number summary is 122, 131.5, 140, 152.75, and (Use ascending order. Type integers or decimals. Do not round.) S √₁ 133 156 all in mBq. Vi I, 135 158 (,) 137 161 More 139 168Consider an investor borrowing at the risk free rate and investing a share of his wealth greater than one in the market portfolio. The beta of this investor’s portfolio is Equal to one Smaller than one Larger than one Equal to zero1st Class 2nd Class 3rd Class Perished 117 163 526 Survived 187 112 186 Total 304 275 712 The table contains data on the survival numbers for passengers by known ticket class for the RMS Titanic when it sunk. Does this data suggest that ticket class and survivability were dependent using α = 0.01?