The table given below shows the data obtained during the outbreak of smallpox: Test the effectiveness of vaccination in preventing the attack from smallpox. Test your result with the help of x2 at 1 percent level of significance.  Table 1: The table given below shows the data obtained during outbreak of small pox   Attacked Not Attacked Total Vaccinated 31 469 500 Not Vaccinated 185 1315 1500 Total 216 1784 2000

Q: hen creating a 99% CI based on data from one sample the size of n=31, which t value should be used?

A: Given: n=31 The degree of freedom=n-1=31-1=30 The level of significance (α)=0.01 We see inside the…

Q: Dr. Spring is a consultant for the National Youth Organization of long jumpers. His goal is to…

A: Solution So we can write the regression equation as length of jumps =65.5156+1.0948*contestant…

Q: Question 2) Consider the following data that shows types of car collisions for a month in a large…

A: (As per our standard guidelines, we are supposed to answer only 3 sub-parts).a) To determine the…

Q: A large beverage company would like to use a statistical process control to monitor how much liqu…

A: Given data set is :

Q: A market researcher is studying on-line subscription services. She is particularly interested in…

A: Here we use Excel to determine the regression equation. Steps to perform regression analysis in…

Q: Sloane conducted a study on years of completed education and income at age 40. She found that for…

A: In the given case, the researcher obtained the income of a sample of 40 years olds and their…

Q: A researcher is analyzing data from a repeated-measures research study. If the researcher ran a…

A: The difference is, Subject 1st 2nd Difference #1 10 11 -1 #2 4 6 -2 #3 7 9 -2 #4 6 5 1…

Q: Lecture(10.5): Use the following table to a answer the following question…

A:

Q: Suppose we focus on the proportions of patients who show improvement.  Is there a statistically…

A: Given,   Symptoms Worsened No Effect Symptoms Improved Total Treatment 1 22 14 14 50…

Q: Arsenic-based additives in chicken feed have been banned by the European Union but are mixed in the…

A: We want to test the hypothesis

Q: The average number of hours of relief provided by 5 different tablets are as follows: Tablet 1…

A: (a)   Obtain the missing values in the ANOVA table.   Follow the instruction to obtain the missing…

Q: Which value do these results indicate is the best estimate of the increased breast cancer risk…

A: The Risk Ratio is also called Relative Risk. Here the study is about the effect of DES exposure and…

Q: A researcher reports an F-ratio with df=3,70df=3,70 for an independent-measures research study.…

A: Given: A researcher reports an F-ratio with df=3,70

Q: The effectiveness of a new bug repellent is tested on 25 subjects for a 10 hour period. (Assume…

A: From the provided information,

Q: a) The symbol and value of the correlation coefficient are as follows:     Round final answer to 2…

A: a) The symbol of the correlation coefficient is r. The sums are, X Y X2 Y2 XY 4500 19.5…

Q: Use the Stata output below to answer the following question. The data used in this analysis is from…

A: The formula of the standard error of the regression is,

Q: The spotted lanternfly, Lycorma delicatula, is an invasive species to the United States that has the…

A: Given that Length of insect: AVG = 1 inch, SD = 0.15 inchNumber of eggs: AVG = 40 eggs, SD = 5 eggsr…

Q: the mean mpg of three different makes of automobiles. The data is shown in the table below: Make n…

A: By applying  one way ANOVA for a single factor,

Q: Total plasma volume is important in determining the required plasma component in blood replacement…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts(ME, lower…

Q: As a new type of environmentally friendly, natural air freshner is being developed, it is tested to…

A: Given:Temperature 1Temperature 2Humidity 1353525312637Humidity 2282322192118

Q: umber of treatments umber of observation per treatment reatment mean square error mean square That…

A: Given n=no of observation=11 k=5 MSS=64 MSE=8

Q: Please help me answer questions from pictures with the following information below: A random sample…

A: Given data: Sample 1: 99 91 119 130 93 123 112 93 125 95 125 117 97 122 127 88 Sample 2: 94 109 99…

Q: (b) Find the P-value. Round the answer to at least four decimal places. The P-value is

A:

Q: Consider the following data on blood pressure: Find the following statistics: 1 Median. 2 25th…

A: To find the median and Percentiles, first arrange the data into ascending order. If the number of…

Q: After the detonation of a 20-kiloton nuclear bomb in China, scientists in Japan and the U.S.…

A: The following table is given: japan us 0.2 0.2 0.4 0.3 0.5 0.1 0.1 0.1 0.3 0.2 0.3…

Q: 1) A researcher wants to determine whether the death rate (number of deaths per 1,000 people) could…

A: The linear regression equation is of form y=β0+β1x Follow the steps below to get the Regression…

Q: (a) Draw a scatter diagram treating MRI count as the explanatory variable and IQ as the response…

A: Here Dependent variable (y) = Mental capacityIndependent variable (x) = MRISample size (n) = 10

Q: Periodically, the county Water Department tests the drinking water of homeowners for contaminants…

A: We have found that the lead and copper levels in water specimens collected in 1986 for a sample of…

Q: Calculate one measure of effect size for this analysis and interpret the measure of effect size…

A: We know that, mean = ΣXi/n  where n is sample size.

Q: Assuming that the data are normally distributed, A. Determine the z-score such that the area to its…

A: Solution: Data are distributed normally To find  : the- Z score

Q: Total plasma volume is important in determining the required plasma component in blood replacement…

A: (a)   Obtain the critical value at the 99% confidence interval/   The critical value is obtained…

Q: The weight of a car can influence the mileage that the car can obtain. A random sample of 17 cars…

A: Here we are given that , the weight of a car can influence the mileage that the car can obtain. Let…