The mean finish time for a yearly amateur auto race was 185.55   minutes with a standard deviation of 0.396   minute. The winning​ car, driven by Terry ​, finished in 184.95   minutes. The previous​ year's race had a mean finishing time of 111.4   with a standard deviation of 0.104   minute. The winning car that​ year, driven by Rita ​, finished in 111.22   minutes. Find their respective​ z-scores. Who had the more convincing​ victory? Terry   had a finish time with a​ z-score of nothing . Rita   had a finish time with a​ z-score of nothing . ​(Round to two decimal places as​ needed.)

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given that:

Q: A brother and sister took two different standardized tests.  He scored 114 on a test that had a mean…

A: Given that, A brother and sister took two different standardized tests.  He scored 114 on a test…

Q: The low temperature in city 5 yesterday was 34 degrees. For this month of the year, the average low…

A:

Q: A random sample of 54 four-year-olds attending day care centers provided a yearly tuition average of…

A: Given n=54 X-bar=3912 Standard deviations=615

Q: The weight of a truck tire must be 110 lbs. The company has a low specification limit of 100 lbs.…

A: The mean weight of a truck tire = 110 lbs Lower specification limit (LSL) = 100 lbs Upper…

Q: the following data set represents the number of new computer accounts registered during 5…

A:

Q: A math class analyzed the lengths of the songs played on a local radio station. The lengths of the…

A: Suppose the random variable x defines the lengths of the songs played on a local radio station.

Q: The year Ali graduated college, he got a job as an entry-level software engineer working for a firm…

A: Solution

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: a department store on average, has daily sailes of $29,395.82. the sandard deviation of sales is…

A: Given that, Mean, mu= 29395.82 And standard deviation, sigma= 2000 We know that, z score is given…

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: Provide a set of 20 data points that has a mean of 20, a median of 25, an IQR of 10, and a sample…

A: Data should have mean of 20, a median of 25, an IQR of 10, and a sample standard deviation between 9…

Q: Dougal is filling out college applications that require either a SAT math score or ACT math score.…

A: Given Information: Dougal has an SAT math score of 610 and an ACT math score of 27. Mean SAT math…

Q: Of the 500 people who took the civil servant acceptance test in one government agency, the average…

A: We have given that  Mean=67.5 Standard deviation=5.2  Find A) P(55.6<x<61)B) P(x>65)

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: The average McDonald's restaurant generates $2 million in sales each year with a standard deviation…

A: Sample  (x) (x-x̄)2 1 2.6 0.1089 2 3.2 0.8649 3 2.2 0.0049 4 2.6 0.1089 5 2.2 0.0049 6…

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: highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find…

A: given data, sample size=8we have to find out the mean , median, mode and  standard deviation for the…

Q: Nick takes a Organic Chemistry test and scores a 40. The Chemistry test scores were normally…

A: Given The data is as follows: Nick's organic chemistry score, X=40 μ=50σ=4   Sally's physics…

Q: Explain why each scenario is either sample or population standard deviation. All SCAD students are…

A: Survey based question

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given information:

Q: A statistician was exploring a set of data representing a group of 121 women.  The mean was 49 and…

A: Sample size, n = 121 Mean = 49 Variance σ2 = 9 We have to find the standard deviation.

Q: A candy manufacturer has replaced 5.17% of their chocolate bars with a new mystery flavor. Find the…

A: Given: Sample size (n) = 424 p(chocolate bars with a new mystery flavor) = 5.17% = 0.0517

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: There are only 4 teams in a league. The winning percentages of the teams are given as follows:…

A:

Q: Which test was better?. Gina took a midterm in her math class and her biology class. After she gets…

A: The objective is to calculate z score for math test for Gina. we have given  x=47 mean(x)=39…

Q: Tony decided that he wants to pursue a master degree in business. One of the requirement is the GMAT…

A: Given that  Tony's GMAT = X = 730 Mean = 556 , Standard deviation = 116

Q: The year Lamar graduated college, he got a job as an entry-level software engineer working for a…

A: To find the z-score of Lamar's starting salary relative to the starting salaries of all entry-level…

Q: Seven students on an intramural team weigh 179 ​lb, 177 ​lb, 174 ​lb, 185 ​lb, 167 ​lb, 186 lb and…

A: Given179,177,174,185,167,186,220sample size(n)=7

Q: Abby's score of 704 on the math portion of the 2002 GRE exam placed her in the 84th percentile rank.…

A: given data  Abby score x = 704 84th percentile σ = 141μ = ?

Q: Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They…

A: Lucille's class had an average grade of 85 and the standard deviation was 3. Lucille earned 89.5 on…

Q: An upscale women's clothing boutique in Laguna Beach, on average, has daily sales of $28,176.44. The…

A:

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

A:

Q: Sarah entered her motorcycle in a slow race with 50 other contestants. She crossed the finish line…

A: It is required to state the formula for the number of standard deviations that the result was above…

Q: Corey has 4929 songs in his computer's music library. The songs have a mean duration of 248.3…

A:

Q: The mean finish time for a yearly amateur auto race was 186.57 minutes with a standard deviation of…

A: The question is about z scoreGiven :Finishing time of winning car which is driven by Mike ( x1 ) =…

Q: The data below represents the total number of points each hockey team in the NHL Eastern conference…

A: Given data is {52,66,84,88,93,100,101,117}find the standard deviation

Q: Suppose you made 5 measures of your walking stride and got the following values: 0.81 m,  0.87 m,…

A: 0.81,0.87,0.79,0.84,0.83

Q: uan and his family are relocating to Los Angeles. They purchased a home they really like, which cost…

A: Solution: Given information: μ= $735000  Population mean σ=$17050  Population standard deviation.

Q: Four students take tests.  The results of each test for the class and the student are listed in the…

A: a) John scored an 85 Mean(μ)=77 standard deviation(σ)=4

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: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

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.