Housing prices in a small town are normally distributed with a mean of $120,000 and a standard deviation of $7,000. Use the empirical rule to complete the following statement. Approximately 95% of housing prices are between a low price of $ Ex: 5000 and a high price of

Q: Recent Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested…

A: Given that Mean(µ) = 24.8 Standard deviations (σ) = 6.2

Q: As a mechanical engineer working for an automobile manufacturer, you conduct a survey and collect…

A: The given values are shown Table 1. The formula to find mean for any sample is, x¯=∑(xf)n (1) Here,…

Q: udnury's bowling ball factory in llinois , in pounds, of 9 of the bowling balls produced that day…

A: See the handwritten solution

Q: Calculate the sample standard deviation of the data shown. Round to two decimal places. 21 15 25 17…

A: Given data set: 21, 15, 25, 17, 24, 30 Number of observations = 6

Q: Scores turned in by an amateur golfer at the Bonita Fairways Golf Course in Bonita Springs, Florida,…

A: a) Mean of the 2005 and 2006 season: x¯2005=74+78+...+75+778=76x¯2006=74+70+...+71+798=76 Variance…

Q: Customers arrive at a movie theater at the advertised movie time only to find that they have to sit…

A:

Q: A used car dealer says that the mean price of a three-year-old sports utility vehicle is $19,000.…

A:

Q: The following BMI scores measured in 12 patients who are free of diabetes and participated in a…

A:

Q: c. Find P(X>40).

A: Let X denote the automobile mileage ratings. Given that X follows N(mean = 37, SD = 1.4), then Z =…

Q: The weights of a certain type of steer follow a Normal model with a mean weight of 1165 pounds and a…

A: Mean = 1165 Standard deviation = 90 a) The required weight for a steer to be among the heaviest 10%…

Q: A sample of college students was asked how much they spent monthly on coffee. Approximate the…

A:

Q: The average cost of tuition, room and board at small private liberal arts colleges is reported to be…

A: The test statistic is, The degrees of freedom is,

Q: Customers arrive at a movie theater at the advertised movie time only to find that they have to sit…

A: a.Computing the sample size:The sample standard deviation is 3 minutes, confidence level is 95%, and…

Q: If a product has a mean demand of 80 with a standard deviation of 10, if the customer holds 100…

A:

Q: In a study of the tooth-brushing habits of a large number of dental patients, it was observed that…

A: The following information has been given: The population mean is μ=230. The population standard…

Q: In this dry lab, calculate the average and standard deviation of the following data. Table1 Trial 4…

A: There are total n = 9 trials

Q: Hour Frequencies 10-14 8 15-19 28 20-24 27 25-29 12 30-34 4 35-39 1

A:

Q: Which of the following statistics indicates the extent to which individual measurements in a sample…

A: Median: The median is the middle value in an ordered sequence of data. If there are no ties, half of…

Q: In a study investigating the effect of car speed on accident severity, the vehicle speed at impact…

A:

Q: Customers arrive at a movie theater at the advertised movie time only to find that they have to sit…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: Customers arrive at a movie theater at the advertised movie time only to find that they have to sit…

A:

Q: The Rudolph has a mean flying speed of 463 mph, with a standard deviation of 76 mph. These…

A: From the given information, mean (μ) =463 mph and standard deviation (σ) =76 mphLet ‘X’ be a normal…

Q: The salaries at a corporation are normally distributed with an average salary of $59,000 and a…

A:

Q: A school district collects data from a district-wide mathematics exam given to eighth-grade…

A: Given that,Mean = 65Standard deviation = 15

Q: If the weights of newborn babies are normally distributed with a mean of 2950 grams and a standard…

A: Given, X~Nμ,σ  where μ=2950 grams    and σ=340 gramsfind P(x<2610)=?

Q: Seattle, Washington, averages m=34 inches of annual precipitation. Assuming that the distribution of…

A: From the provided information, Mean (µ) = 34 inches Standard deviation (σ) = 6.5 inches Let X be a…

Q: The amount of time Mr. Smith spends exercising each day is approximately normally distributed with a…

A:

Q: A coffee shops tracks sales and has observed the distribution in the following table. What is the…

A:

Q: Which of the following would be the standard deviation used in developing the p-control chart?

A: Given:  Proportion of defective product p= 0.03 Sample size n=30  To find standard deviations used…

Q: The commute time for Cypress College students who drive from their home to the college follows a…

A:

Q: Use the Empirical Rule to answer the following questions. a. The mean is b. The standard deviation…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: What percentage of compacts get A. less than 24 mpg? B. 30 mpg or more? C. between 20 and 28?

A:

Q: The normal monthly rainfall in Seattle, WA is as follows: Jan 5.4                       July 0.9…

A: Given the monthly rainfalls as  5.4 , 4.0 , 3.8 , 2.5 , 1.8 , 1.6 , 0.9 , 1.2 , 1.9 , 3.3 , 5.7 ,…

Q: Customers arrive at a movie theater at the advertised movie time only to find that they have to sit…

A: It is given that the standard deviation is 4 minutes.

Q: Q1: 1-A researcher has collected the following sample data Calculate coffined of variation, which is…

A: We have given the following data  and we have to find out the coefficient of variation.

Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Given :  the heights of college women are normally distributed with mean 65 inches and standard…

Q: The time spent by a teacher at work during spring holidays is normally distributed with a mean of 20…

A: Given that.   X~N( μ , ?^2 )   μ=20     , ?=5   Z-score =( x - μ )/?

Q: Customers arrive at a movie theater at the advertised movie time only to find that they have to sit…

A: Given,standard deviation(σ)=3 minute=180 secondsα=1-0.95=0.05α2=0.025Z0.025=1.96    (from Z-table)

Q: The weights of a certain type of steer follow a Normal model with a mean weight of 1191 pounds and a…

A: Given,  mean(μ) = 1191 standard deviation(σ) = 54

Q: If data set A has a larger standard deviation than data set B, data set A is more spread out than…

A:

Q: Use Minitab software to answer the following questions: Interpret all answers. 22: The length of…

A: (a) Obtain the percentage of the salmon fish population has length less than 40 cm. The percentage…

Q: Which of the following data would be most appropriate to report standard deviation ? scores of an…

A: Standard deviation- Standard deviation is a measure of dispersion. It is a quantity that expresses…

Q: Which symbol is used for standard deviation of the population? O b. a O c.o o d.o?

A: We have given that,  Which symbol used for standard deviation of the population?  We have to check…

Q: If you draw a sample of 200 from a normal distribution and using the empirical rule; how many data…

A: Empirical rule: On a normal distribution about 68% of data will be within one standard deviation of…

Q: The annual incomes of all MBA degree holders working in Los Angeles have a bell-shaped distribution…

A: From the provided information, Mean (µ) = $78,000 Standard deviation (σ) = $11,000 Let X be a random…

Q: The following are body mass index (BMI) scores measured in 9 patients who are free of diabetes and…

A: Mean:The mean of the data is calculated as follows:

Q: .The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and…

A:

Q: What is the standart-deviation of the following data? (select the closest value) Class Frequency 2.7…

A: The table that shows the calculations is shown below: The sample mean is calculated as follows:

Q: Calculate the sample standard deviation of the data shown. Round to two decimal places. 10 14 22 21…

A: