Salaries of 49 college graduates who took a statistics course in college have a mean, x, of $63,500. Assuming a standard deviation, o, of $14,619, construct a 90% confidence interval for estimating the population mean u. Click here to view at distribution table, Click here to view page 1 of the standard normal distribution table Click here to view page 2 of the standard normal distribution table. $

Q: 12. The red blood cell count for a population of adult males can be approximated by a normal…

A: We have given that  X~N( μ , ?^2 )    μ = 5.4    , ? = 0.4   Z-score =( x - μ )/?  ,

Q: What is the confidence interval estimate of the population mean u? ]°F<µ<| 7°F (Round to three…

A: Given : sample standard deviation, s = 0.66 confidence level,c= 0.99 Sample Size, n = 104 Sample…

Q: Cardiovascular Disease, Pulmonary Disease The duration of cigarette smoking has been linked to many…

A: Given Information: Men: Mean μ=12.7 Standard deviation σ=5.2 Women: Mean μ=9.2 Standard deviation…

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: CetaceaNow is a conservationist organization that monitors the health of whale and dolphin…

A:

Q: minutes. What percentage of his commutes will be between 13 and 26 minutes, to the nearest tenth?

A: Let X be the random variable that amount of time to arrive. Given that, X~N(μ=23,σ=5)

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: 21. What is the probability of selecting someone from the general population at random who would…

A: Given that Population mean=100  Standard deviation =5  We have to find 21.. probability of selecting…

Q: Assume that women have heights that are normally distributed with a mean of 63.6 inches and a…

A:

Q: Assume that the average length of some wire is 52 inches with a standard deviation of 6.5 inches. At…

A: Given: The average length of the wire, μ=52 Standard deviation, σ=6.5 We need to determine at most…

Q: Each year students in a local school district write a national examination. The average on this…

A: Average of a dataset is the mean value of the observations in the data and it is computed by…

Q: A recent study explores the relationship between teacher unions and student educational performance…

A: Given that, A recent study explores the relationship between teacher unions and student educational…

Q: people where sampled and their heights were recorded, it was discovered mean height was 5 feet and…

A: Given that  Population mean μ =5 feet 6.3 inches =66.3 1feet=12 inches  5feet=12×5=60+6.3=66.3…

Q: Do students who are members of fraternities or sororities have GPAS alfferent from the student body…

A: μ=2.59,s=0.34,x¯=2.47,n=123Decision rule: When p value&lt; level of signicance,then reject the null…

Q: Suppose that the life-span of goldfish can be modeled by the Normal Distribution with a mean of 5…

A:

Q: mandatory competency test for high school sophomores has a normal distribution with a mean of  425…

A: Given that.   X~N( μ , ?)   μ=425     , ?=83   Z-score =( x - μ )/?

Q: A survey found that women's heights are normally distributed with mean 62.1  inches  and standard…

A: Let "X" be the men who meet the height requiremnet. Refer Standard normal table/Z-table OR use…

Q: mean length of 25 cm. Because of the variability in the manufacturing​ process, the lengths of the…

A: Population mean μ =25 Population standard deviation =0.08

Q: Give the mean and the standard deviation of the distribution of means for mean=100; Variance=100;…

A:

Q: Consider a test of coordination that has a normal distribution, a mean of 50, and a standard…

A: given data   normal distribution   μ = 50σ = 5

Q: Q scores based on the Wechsler Adult Intelligence Scale (WAIS) are assumed to be normally…

A: Given data,Mean μ=100standard deviation σ=15Score is x=125z-score=?

Q: An article in the San Jose Mercury News stated that students in the California state university…

A: Given, Sample size (n) = 48 Sample mean (x̅) = 5.1 Sample standard deviation (s) = 1.2

Q: A statistics professor wanted to estimate the standard deviation for the grades that students…

A: We have to find ci for sd.

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of 410…

A:

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

A: Here, µ = 26 and σ = 8.

Q: person would need to be in each of the following top percentages. (a) 3% (b) 9%

A: It is given that  Mean, μ = 100 Standard deviation, σ = 11

Q: The scores on the final exam in a statistics course are close to being normally distributed. The…

A: Normal distribution: It is a continuous probability distribution, that is bell-shaped with lighter…

Q: A psychologist is studying smokers' self-images, which she measures by the self-image (SI) score…

A:

Q: Assume that an intelligence test scores are distributed normallt with a mean of 100 and a standard…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: We have a distribution with a mean of ? = 35 and ? = 3.5. Find the raw score equivalents for the…

A:

Q: A woman insists that she will never marry a man as short as or shorter than she, knowing that only…

A: Probability = 15000= 0.0002 = 0.02 percentile For final answer see the step2

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.