For a population with a standard deviation of σ = 6, what is the z-score corresponding to a score that is 12 points above the mean?
For a population with a standard deviation of σ = 6, what is the z-score corresponding to a score that is 12 points above the mean?
Expert Answer
Want to see the step-by-step answer?
Measures
Related Statistics Q&A
Q: An investigator wants to assess whether the use of a specific medication given to infants born prema...
A: The cohort study generally involves a group of individuals that meet a set of criteria at the study ...
Q: Hi. How do you arrive at an answer using the TI-83? Thanks.
A: Solution:99% confidence interval for the slope of the regression line is calculated using EXCEL.The ...
Q: High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. Afte...
A: The proportion of tagged trout in the lake is, p = 700/2000 = 0.35Let X be the number of tagged trou...
Q: Suppose that Xi ∼ Gamma(αi , β) independently for i = 1, . . . , N. The mgf(moment generating functi...
A: It is provided that and the moment generating function (MGF) is,
Q: How do I solve this question with this table? obtain this sample using the portion of the random num...
A: By using random number table we can determine the random sampling with equal chance of occurrences o...
Q: 2. You are at Disney World and wait 45 minutes to ride the roller coaster at Space Mountain. Guests ...
A: The aim is to define the cycle time of the process and the throughput time.
Q: A researcher wants to investigate whether mindfulness training improves ability for employees to not...
A: The total factors in the given experiment are1. Gender2. Disposition3. GroupsGender has two levels m...
Q: A group says that the mean daily lodging cost for a family traveling in Region 1 is the same as in R...
A: Given the data of mean daily lodging cost for a family traveling in Region 1 and Region 2.The claim ...
Q: Write the equation of the line that passes through the points (0, 1) and (− 1, 3). Explain your solu...
A: The equation of the line is given by, y = mx+c, where m is the slope and c is the intercept.
Q: Exam grades: scores on a statistics final in a large class were normally distributed with a mean of ...
A: Let X be the scores on statistics final, which is normally distributed with mean = 75 and standard d...
Q: Arianna Estefan manages Salmon Falls Park, which has two flagship roller coasters, the Flyer and the...
A: Given Null hypothesis : H0 : µ1 = µ2Alternate hypothesis : Ha : µ1 < µ2, where µ1 is mean numbe...
Q: a. Which of the six correlations above are statistically significant (i) if you test each correlatio...
A: We have been given alpha = 0.05 which implies that the probability of inferring that there is a cor...
Q: Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let x be the weight of ...
A: Hi, since the problem posted by you contains multiple sub-parts, we are answering the first three su...
Q: Five children aged 2, 3, 5, 7 and 8 years old weigh 14, 20, 32, 42 and 44 kilograms respectively. Fi...
A: Let x be the age of children and y be the weight of children.The equation of the regression line is:
Q: In a survey of 3 of 4 students said the courts show too much concern for criminals. Find the probab...
A: According to the given question, in a survey of 3 of 4 students said the courts show too much concer...
Q: Previously, you studied linear combinations of independent random variables. What happens if the var...
A: Hey, since there are multiple subpart questions posted, we will answer first three subparts. If you ...
Q: In a survey of 4061 adults, 738 say they have seen a ghost. Construct a 99% confidence interval fo...
A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have ...
Q: Jobs and productivity! How do retail stores rate? One way to answer this question is to examine annu...
A: Note:Hi! Thank you for posting the question. Since your question has more than 3 parts, we have solv...
Q: Suppose x has a normal distribution with mean μ = 28 and standard deviation σ = 7.Describe the distr...
A: Note:Hi there! Thank you for posting the question. Your question asks about the “distribution of x v...
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items w...
A: Given data obtained for a collection of archeological sites in New Mexico as shown below. The least ...
Q: Rolling two dice. If two dice are rolled one time, find the probability of getting these results. A...
A: Probability of an event:The probability of an event is the number of favourable cases for an event d...
Q: Which is not one of the major assumptions typically associated with parametric tests of significance...
A: Introduction:Some of the major requirements (though not the only requirements and may vary from one ...
Q: In a recent survey conducted by the International Nanny Association, 4,176 nannies were placed in a ...
A: Yes, it is appropriate to divide 24 by 4,176.
Q: A company has a price demand function P (x) = 150 − 3x for a certain product. What is the revenue fu...
A: The price demand function is provided as P(x) = 150 - 3x.The revenue function is given by,R(x) = xP(...
Q: Let x be the average number of employees in a group health insurance plan, and let y be the average ...
A: (a)The scatter diagram for the provided data can be plotted using Excel.The steps are given below:En...
Q: In general, we want to see if elderly primes will lead people to feel elderly feelings and see an ol...
A: The independent variable is that which is changed by the experimenter to test the outcome of the dep...
Q: Use software or a calculator to find the range, variance, and standard deviation of the following b...
A: As data of temperature is not provided here. Here i can show you how to find the range, standard dev...
Q: 14. The number of school related extracurricular activites per student are given below: X. ...
A: a)As the sum of the probabilities in the probability distribution table is 1, the value of P(x=3) ca...
Q: Consider the following data on x= height of a building and y = number of stories for nine notable bu...
A: Given data of x= height of building and y = number of stories for nine notable buildings as shown be...
Q: Leah Peschel is the bottling department manager for a bottling company that produces various soft dr...
A: GivenNull hypothesis H0: µ1 = µ2Alternative hypothesis Ha : µ1 ≠ µ2Sample mean number of cola bott...
Q: The Orchard Cafe has found that about 10% of the diners who make reservations don't show up. If 86 r...
A: Binomial distribution:A random variable X follows binomial distribution if it follows the given prop...
Q: A researcher says that 50% of the variance in blood pressure can be predicted from HR and that blood...
A: In this question we have the value of coefficient of determination which is equal to 0.50 and we hav...
Q: An epidemiologist found five cases of “big toe cancer” in the Yukon Territory. Because there were on...
A: Note: Since we are authorized to answer only up to 3 subparts, we are answering first three subparts...
Q: Oxygen demand is a term biologists use to describe the oxygen needed by fish and other aquatic organ...
A: Let X be the random variable, defined as the oxygen demand.Here, X follows normal distribution with ...
Q: Jane has stored three albums on her iPod. The first album consists of 11 songs by Frank Sinatra, the...
A: According to the given question, Jane has stored three albums on her iPod.The first album consists o...
Q: If a given line has a negative slope, then what is the sign of the slope of the line that is perpend...
A: Relationship between slopes of two perpendicular straight lines:The slopes of two lines, which are p...
Q: See attachment.
A: Given X(n,p) is a binomial random variable with parameters n,p.n is total number of trailsp is proba...
Q: A population has a mean of 15 and standard deviation of 3. Round the answers to two decimal places a...
A: Let X be the observation. X follows normal distribution with mean μ = 15 and the standard deviation ...
Q: Use the table below to find the percentage of data items in a normal distribution that lie a. below ...
A: Solution:Percentile reports the percentage of data items in a normal distribution that lies below th...
Q: Number 1 Please, Explain shortcut with TI84 if applicable
A: a. Computation of test statistic value:Sample size is greater than 30 and the population standard de...
Q: The numbers of faculty at 32 randomly selected state-controlled colleges and universities with enrol...
A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is known is given ...
Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason fo...
A: 1) Computation of test statistic:Here, the appropriate test to check whether the population proporti...
Q: what is the class boundaries 16.5, 20.5, 24.5, 28.5, 32.5, 36.5, and 40.5.
A: Class boundaries are those numbers which are used to separate the classes.It is the midpoint of the ...
Q: Fifty-three percent of all persons in the U.S. population have at least some college education. Cho...
A: According to the given question, Fifty-three percent of all persons in the U.S. population have at l...
Q: Question 1 The company Phiten makes necklaces that Major League Baseball players commonly wear durin...
A: a) an exogenous variable can be defined as a variable whose value is independent of other variables ...
Q: What happens to the variance when outliers are eliminated replaced by values closer to the mean
A: Introduction:Mean:Mean is an important measure of center when the data is quantitative. Mean of a da...
Q: yai ayu, au uiaı uie iwu aapico aI IIupcInuc J pi IaIuvII apico ocicLICu 1VIITIVILIany uiouIvulcu pu...
A: Solution:Null and alternative hypotheses:The null and alternative hypotheses to test is given below:...
Q: For frecuency distribution for us governor 2019. Party. Frequency Democratic. ...
A: For any event A, the probability of A can be found as follows:
Q: I need help with part (c) only, I need t statistic and p value. Mist (airborne droplets or aerosols)...
A: Part (c):The regression analysis is conducted here by using EXCEL. The software procedure is given b...
Q: Number 15 A B C D
A: Note:Thank you for the question. However, your question has more than 3 parts. We are solving first ...