Housing prices in a small town are normally distributed with a mean of $126,000 and a standard deviation of $8,000. Use the empirical rule to complete the following statement. Approximately 99.7% of housing prices are between a low price of_ and a high price of _

Q: Fry Brothers Heating and Air Conditioning, Inc. employ Larry Clark and George Murnen to make service…

A: The test hypotheses are as follows: Null hypothesis: H0: μ1 = μ2 Alternative hypothesis: Ha: μ1 ≠ μ2…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: The question is about hypo. testing Given : Popl. mean amount of wireless data used by teenagers ( μ…

Q: Florida has an average temperature of 80 degrees Fahrenheit with a standard deviation of 3.5…

A: # Given : average temperature of Florida is mu1=80 degrees and standard deviations sigma1=3.5…

Q: Brewed decaffeinated coffee contains some caffeine. VWe want to estimate the amount of caffeine in 8…

A: Obtain the 90% confidence interval for the population mean.   The 90% confidence interval for the…

Q: College and University Debt A student graduated from a  4 -year college with an outstanding loan of…

A: From the provided information, For college, the average debt (µ) = $8478 Standard deviation (σ) =…

Q: You work for a consumer watchdog publication and are testing the advertising claims of a tire…

A: Formula for standard deviation is, s=x-x¯2n-1 Let us define xi as the given data values.

Q: A car salesperson offers you a car at the price of $22,895. You look up the mean sales price for…

A: We have given that the random variable X that is sales price. Here, X = 22895 Mean = 21900 and…

Q: An elementary school class ran one mile with a mean of 12 minutes and a standard deviation of three…

A: See the hand written solution

Q: Housing prices in a small town are normally distributed with a mean of $172,000 and a standard…

A: Empirical rule (68 – 95 – 99.7 rule): For a bell shaped distribution (normal) the empirical rule…

Q: To boost holiday sales, a jewelry store in Bismark, North Dakota is advertising the following…

A: a) The value of z is 1.79  and it is calculated below: Let us define the random variable X as the…

Q: Demand for computer chips is normally distributed with average 10,000 computer chips and a standard…

A:

Q: Students at a major university are complaining of a serious housing crunch. They complain that many…

A: a. Consider that a random variable X has expected value μ and standard deviation, σ. Now, according…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: State the null and alternative hypotheses for the test. Fill in the blank below. H0: μ=6:…

Q: An employer claims that full time employees have a mean income of $35,000. A sample of 200 employees…

A: From the provided information, Sample size (n) = 200 Sample mean (x̅) = $34000 Population standard…

Q: The life span of a brand of tireis normally di stributed with a mean of 50,000 miles and a standard…

A:

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: As of 2020, 83 pitchers have been inducted into the Major League Baseball Hall of Fame. The…

A: Let X be the number of winning games played. Here, X~N( 250, 832) X~N(250,832)⇒Z=X-25083~N(0,1) a.)…

Q: he average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006).…

A: Given that  he average expenditure on Valentine's Day was expected to be $100.89  Male   Female…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: Given Hypothesized mean = 7 Gb sample mean , x = 6.2 Gb sample standard deviation , s = 1.7 Gb level…

Q: Brewed decaffeinated coffee contains some caffeine. We want to estimațe the amount of caffeine in 8…

A: Obtain the 90% confidence interval estimate for the true mean amount of caffeine in eight-ounce cups…

Q: You work for a consumer watchdog publication and are testing the advertising claims of a tire…

A: Solution

Q: aking the Graduate Management Aptitude Test averaged 812 with a standard deviation of 145. Only…

A: Given: Meanμ=812Standard deviationσ=145 Consider, X be the random variable that shows the average…

Q: You are a consumer advocate. A particular brand of tires state that they last for 50,000 miles…

A: Given that, You are a consumer advocate.  A particular brand of tires state that they last for…

Q: The brand of corn flakes come in a box that says it holds 32 ounces of cereal. The manufacturer says…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: You are a consumer advocate.  A particular brand of tires state that they last for 50,000 miles…

A: We have to find That which statastics test use.. from given options..

Q: cording to a recent pol, 26% of adults in a certain area have high levels of cholesterol. They…

A:

Q: A nutritionist claims that the mean tuna consumption by a person is 3.6 pounds per year. A sample of…

A: Given, A nutritionist claims that the mean tuna consumption by a person is 3.6 pounds per year. A…

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

A: Given that  Sample Standard deviation (s)=4 minutes…

Q: A gymnastics class ran one mile with a mean of 11 minutes and a standard deviation of three minutes.…

A:

Q: Housing prices in a small town are normally distributed with a mean of $141,000 and a standard…

A: Given,mean(μ)=$141,000standard deviation(σ)=$7,000

Q: students who completed this core set of courses results in a mean math score of 24.6 on the college…

A: here sample mean = 24.6 sample standard deviation = 3.3 here n = 200

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

A:

Q: Laptop Computers and Sperm Count Men hoping to have children are encouraged to avoid hot tubs or…

A: State the hypotheses That is, there is no evidence to conclude that average temperature increase…

Q: Lunch break: In a recent survey of 655 working Americans ages 25 - 34, the average weekly amount…

A: The mean of 45.84 and standard deviation of 3.07.

Q: What value will be used as the point estimate for the standard deviation of endowment of all private…

A: Answer:-

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: Accarding to a leasing firm's reports, the mean rumber of miles driven annually in its leased cars…

A: a)   Consider that μ as the population mean number of miles driven annually under the new contracts.

Q: A nutritionist claims that the mean tuna consumption by a person is 6 pounds per year. A sample of…

A:

Q: See picture for questions.   Explanation On their website, a property management company states…

A: Givensample size(n)=10Mean(x)=660standard deviation(s)=25α=0.10

Q: burban Families Watched An Average Of μ = 60 Minutes Of Television Each Day. Assuming That The…

A: Given dataMean µ = 60 minStandard deviation σ = 25 minutesa) proportion of 2-year-old children watch…

Q: The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13,…

A:

Q: Tubes are manufactured in a company that has a mean of life, (hr = 800) and a standard deviation of…

A:

Q: The average rancher has a mean 2500 head of cattle. After a vegetarian riot in Montana, the hope is…

A: State the hypotheses That is, there is no evidence to conclude that average rancher has a mean head…

Q: Housing prices in a small town are normally distributed with a mean of $177,000 and a standard…

A: A normal distribution follows a bell shaped curve which is centred at the mean and it is also called…

Q: Student loan debt is the only form of consumer debt that has grown since the peak of consumer debt…

A: We have given that.    X~N( μ , ?^2 )    μ =24350     , ? = 3000   ,n= 30   Z-score =( x - μ )/?

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given information Hypothesized mean µ = 19 inches Sample size (n) = 49 Mean x̅  = 18.5 inches…

Q: College Professors have incomes with a standard deviation that is less than $21,000. A recent study…

A:

Q: Car Aircon claims that the average cost of car aircon installation and repairs is 11,000. A sample…

A: From provided information, it is claimed that the average cost of car aircon installation and…

Q: A researcher believes the mean weight of males sulcata tortoises is more than 205 pounds.  She…

A: Given Data: x¯=216.2s=13.5n=18   Null and Alternate Hypothesis: H0: μ=205 H1: μ>205

Q: A local store has found the expected number of smooshed donuts per dozen is 0.6, with a standard…

A: Here Take  RANDOM variable X = Number of smooshed donuts