Thandiwe was not able to sell her house for $190,000, so she lowered the price to $170,000. What was the percent of decrease? Round to the nearest tenth of a percent. %

Q: QUESTION 5 A standard normal distribution is a normal distribution with a. a mean of 1 and a…

A: Method : standard Normal distribution having         Mean= 0 and standard deviation = 1

Q: Regression analysis was applied between sales data (y in $1000s) and advertising data (x in $100s)…

A: From the provided information, y^=12+1.8x And n = 17, SSR = 225, SSE = 75, Sb1 = 0.2683

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A: Introduction: Let us indicate the fruit flies by the first letters of their names, so that Alfonso…

Q: You draw a simple random sample of 27 items from a Normal Population that has a standard deviation…

A:

Q: Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0…

A: Required probability is P(Z<0.64)

Q: Consider the sample 13, 19, 18, 20, 16, 9, 10, 7, and 8. Find the mean? Show the solution and write…

A: Given that  The data are X : 13, 19, 18, 20, 16, 9, 10, 7, 8.

Q: Lost-time accidents occur in a company at a mean rate of 0.3 per day. What is the probability that…

A: To find: What is the probability that the number of lost time accidents 1g over a period of 9 days…

Q: The number of potholes in any given 10 mile stretch of freeway pavement is normally distributed.…

A: given datanormal distribution μ=16σ=6emperical rule:according to emperical rule 68%, 95% and 99.7%…

Q: for the above i got the mean of 1, can you help me w the standard deviation and the variance

A: From the above parts Here we have Since, X ~ Binomial (n = 3 , p = 1/3)  Therefore, n = 3 , p = 1/3…

Q: Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two…

A: The sample mean and sample standard deviation are computed as follows:

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Q: Calculate each value requested for the following set of scores. XY 14 36 51 7 4 a. ΣΧ b. ΣΥ c.…

A: X Y 1 4 3 6 5 1 7 4

Q: 296

A: As per our guidelines I can solve only first 3 subparts. Kindly post the remaining subpart again and…

Q: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the…

A: Givensample size(n)=600x=330Sample proportion(p^)=xn=330600=0.55confidence level=99%

Q: Briefly define each of the following: a. Distribution of sample means b. Central limit theorem c.…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....…

Q: In a random sample of 100 customers, the items that customers purchased were tracked. It was found…

A: Given,sample size(n)=100sample proportion(p^)=0.171-p^=1-0.17=0.83α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: Solve using R studio commands Suppose Z~N(0,1), find: (a) P(Z < 0.5), P(Z = 0.5), and P(Z ≥ 2.3)…

A: Solution: Let Z be the standard normal variable with mean 0 and standard deviation 1. Z~N(0,1)

Q: Consider the linear regression model y = X3 + u ith iid random variables and assume u~ N(0,0²In).…

A: The linear regression model y=Xβ+u             ................(1) with i.i.d. random variables and…

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A:

Q: The Pasadena fire department aims to respond to fire calls in 8 minutes or less, on average.…

A: Given;sample size(n) = 18standard deviation(σ) = 1 minute 48 seconds = 1.48 minutesample mean(x¯) =…

Q: The heights of adult American men can be modeled by a normal distribution with mean μ = 69 inches…

A: According to the given information in this question We need to find the probability by empirical…

Q: Given the following history, use a three-quarter moving average to forecast the demand for the third…

A:

Q: Engineers must consider the breadths of male heads when designing helmets. The company researchers…

A: given data  normal distribution  μ = 5.6σ = 1.1

Q: The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a…

A: Given that.   X~N( μ , ?)   μ=197.5     , ?=8.3   Z-score =( x - μ )/?

Q: Find the indicated value. (Find the Critical Value Z-score such that the given area falls to the…

A: Given that  Alpha=0.36  we have to find the critical value of Z score that given area falls to the…

Q: The proportion p of residents in a community who recycle has traditionally been 70%. A policy maker…

A:

Q: In a given data of ages of engineers working fulltime in a multinational company, the reported first…

A: Given that  First quartile = Q1 = 24.6

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A:

Q: The prices to travel between five cities in Colorado by bus are given in the table below. Represent…

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A: Givenclaim is that the customer satisfaction rate is different than 54% of company claimsample…

Q: A college professor claims that the entering class this year appears to be smarter than entering…

A: Given data issample size(n)=20Mean(x)=117standard deviation(s)=15significance level(α)=0.05

Q: Assume that the amounts of weight that male college students gain during their freshman year are…

A: given data  normal distribution μ = 1.4σ = 4.8

Q: around social and environmental considerations. Refer to the Business and Society (March 2011) study…

A: b. Suppose µ is the population mean level of support for all senior managers at CPA firms.

Q: Of the cartons produced by a company, 7% have a puncture, 6% have a smashed corner, and 0.4% have…

A:

Q: If a researcher were conducting a two-tailed/non-directional hypothesis test with an alpha of 0.10…

A: GivenTest is two tailed testα=0.10sample size(n)=120

Q: A bank has a policy that the proportion of loans made to people with more than $50,000 in debt…

A: Solution: Given information: n=75 Sample size  x =113 successes  p =0.15 Population proportion

Q: weight age tall Correlations Pearson Correlation Sig. (2-tailed) Pearson Correlation Sig. (2-tailed)…

A: From the first table (Correlations) we can see the correlation between the variables. The…

Q: Write the integer that represents the situation. The temperature was 24°F. It dropped so that the…

A: Given Upper =24°F and lower=0°F

Q: 28) The probability that z lies between -1.10 and -0.36

A: Given, P(-1.10 &lt; X &lt; -0.36)  We will use z-standard normal distribution.

Q: shows the communications agencies and the number subscribers. Construct a pictograph. Communications…

A: The given data is as follows: Communication Agency No. of Subscribers Smart Communications…

Q: will be exceeded 10% of the time? 10. Incomes are exponentially distributed with 2 = 0.0001. What…

A:

Q: The average number of moves a person makes in his or her lifetime is 12 and the standard deviation…

A: We have given that                                     Mean(µ) = 12 Standard deviations (σ) = 3.4X…

Q: Incinerators can be a source of hazardous emissions into the atmosphere. Stack gas samples were…

A: Note-according to Bartleby question answer guidelines expert can solve maximum one question and…

Q: Consider the partially completed ANOVA summary table. Use the table to answer the questions below.…

A: The table shows the partially completed ANOVA summary table.

Q: 1. A student researcher from the College of Education of the University of Pangasinan is making an…

A:

Q: Parameters are a. numerical characteristics of a sample. b. numerical characteristics of a…

A: As per our guidelines we can solve first multiple-choice question and rest can be reposted. Q.12…

Q: The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm…

A: Given n=20, population mean μ=197.5, sd=8.3

Q: Let X = the time in hours between two successive arrivals at the drive-up window of a fast food…

A: We have given  λ = 10X ~ Exponential (λ )

Q: uppose X and Y are independent random variables. If the pdf of x is xe ",x ≥ 0 and the pdf of y is…

A: Solution