A town's average rainfall in the month of March is 7 inches with a standard deviation of 1.8 inches; meanwhile, in August, the town's average rainfall is 3.5 inches with a standard deviation of 0.4 inches.  In which month would it be more unusual to have a total of 4 inches of rain?  Explain your conclusion with complete sentences using a valid statistical approach (i.e. z-scores).  You may display your calculations using the equation editor tool -- denoted with the square root radical.

Q: What dot plot has a median of 5, a range of 10, and a mean of 5?

A: Explanation: Consider the data set is: 0, 5, 10 n = 3 Mean = 0+5+103= 153= 5 Median = n+12thterm=…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A:

Q: Two different surveys will be conducted to estimate the mean salary of employees who have taken a…

A: The confidence interval inversely depends on the sample size. The formula for the confidence…

Q: The variance of the data :. 6 ,6 ,-6,-6 is equal to

A: Find variance of the data  6 ,6 ,-6,-6

Q: Section 1. IQ tests supposedly measure our intelligence. They typically are 'normed' so that they…

A: We have given that  Mean = 100 Standard deviation = 15

Q: a values that would allow 55% of the data to fall within the mean observing symmetry? Draw the curve…

A: Mean and standard deviation are given below:  μ = 8.70σ=2.1846 Z-score is a measure that indicates…

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: THE INFORMATION BELOW REFERS TO THIS AND THE NEXT QUESTION. The heights of adult women in the…

A: A critical value is a point on the test distribution that is compared to the test statistic to…

Q: 3. The number of miles traveled per gallon of gasoline for a certain car has a mean of 25 and a…

A: Given that  Mean=25 Standard deviation =2 Sample size n=20

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: a.) At a = .05, is there enough evidence to show that the true mean red blood cell count in the…

A: a) The provided sample mean is Xˉ=4.932\bar X = 4.932 and the sample standard deviation is s=0.504s…

Q: Consider two investment options: Stock A and Stock B. Every $100 invested in Stock A yields a return…

A: The standard deviation for the portfolio is a function of the standard deviations of the assets that…

Q: If we add a constant (say, d) for all data values, how this will affect the geometric mean? and what…

A:

Q: Suppose an estimator for a window supplier made a mistake in measuring by inputting the width of a…

A: Is cost of window is p dollar/inch2 And lengh of window is l Then total lose =lp dollar

Q: Why does Mean of the Deviations Not a Useful Measure?

A:

Q: Example 1: Recent research suggests that a pregnancy within less than two years of a live birth…

A: Given: Sample size n = 15 Significance level α = 0.10 Formula Used: Test-statistic t = d-μdsdn…

Q: a student had 93% in chemistry had a class average of 85% and standard deviation of 8%. the same…

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: Suppose the mean percentage in Algebra 2B is 70% and the standard deviation is 8%. What percentage…

A:

Q: In one sentence, please write what you understand by the term standard deviation.

A: Standard deviation is a measure of dispersion or spread of the data set relative to its mean.

Q: A police officer waits on a road to catch speeding cars. In a one hour sample, the officer find that…

A:

Q: Suppose that P(Z >1.96) = 0.025. Find P(Z ≤ 1.96). (Hint: Use the complementation rule.)

A: Complementation rule:

Q: Please do not give solution in image formate thanku.  A survey investigated how much money parents…

A: Population mean, Population standard deviation,

Q: Which of these statements is best?       The variable to be predicted is the independent variable.…

A: Which of these statements is best?       The variable to be predicted is the…

Q: Is there a doctor in the house? A market research firm reported the mean annual earnings of all…

A: That is, there is no evidence to conclude that the mean salary for family practitioners in Los…

Q: Use the five-step procedure to test the research hypothesis that the mean weight in men in the…

A: H0 : ? =191 H1 : ? >191

Q: Round each z-score to the nearest hundredth. A data set has a mean of  x = 4079  and a standard…

A:

Q: Use your favorite search engine to find 10 daytime high temperatures from where you live. After…

A:

Q: A machine makes sticks of butter whose average weight is 4.0 ounces. The SD of the weights is 0.05…

A:

Q: b. At 99% confidence, what is the margin of error? c. Develop a 99% confidence interval for the…

A: USA Today reports that the average expenditure on Valentine's Day was expected to be $100.89. Do…

Q: Americans (on average) individually eat 16 pounds of seafood each year with a standard deviation of…

A: Given that   x̄ = 14 , μ = 16 , ? = 7 , n = 4

Q: approximately the same. A recruiting office randomly surveys 50 entry level statisticians and 50…

A: Given Information: Number of statisticians,n1=50 Mean salary of statistician, x1¯=41100 Standard…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: The entering SAT scores and high school GPA's of 100 first-year students and their grade point…

A: Given information: The investigator is specially interested to predict the college GPA for next…

Q: 4. During the course of a semester, 10 students in Mr. Smith's class took three exams. Use Microsoft…

A: Given, Test1 Test2 Test3 90 94 95 65 75 90 51 77 91 88 84 93 72 88 92 75 84 90 60…

Q: Please solve using the 5 steps, thank you. Oil wells in a large field produce an average of 3.5…

A:

Q: the mean (and standard deviation) snowfalss for two cities are noted below.  Ottawa : Mean=98…

A: The relative average can be obtained using z-score. The z-score for the snowfall in Ottawa is…

Q: Round each z-score to the nearest hundredth. A data set has a mean of  x = 213  and a standard…

A: For a sample point x, the corresponding z-score is given by    z = (x - )/ Where,  = mean of the…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.