Suppose that more than a decade ago high levels of lead in the blood put 82% of children at risk. A concerted effort was made to remove lead from the environment. Suppose, according to a survey, only 9% of children in the United States are at risk of high blood-lead levels. In a random sample of 100 children taken more than a decade ago, what is the probability that 70 or more had high blood-lead levels?

Q: Given that a random person just tested positive, determine the probability of having this illness.

A: Here use tree diagram

Q: has been determined that the chance of becoming infected by a disease after contact with a…

A: n=50 p=0.15 x=? Using binominal distribution: P(X=x)=50x 0.15x(1-0.15)50-x   =50x0.15x(0.85)50-x

Q: If Y is a random variable with a mean of 10 and a standard deviation of 2, what is the probability…

A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 2

Q: What is the probability that the sampling error would be less than or more than 1.5 seconds

A: Given:mean µ = 30standard deviation σ= 2sample size n = 16 Let x̄ represent the sample mean time,…

Q: what happens If the Levene's test is statistically significant?

A: Levene's test is an inferential measure used in statistics to determine the equality of variances…

Q: e reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of…

A: Given data number of success , x= 20.0 sample size, n = 540 population…

Q: According to a study conducted by a statistical organization, the proportion of people who are…

A: From the given data fill the required blanks

Q: Annie is concerned over a report that "a woman over age 40has a better chance of being killed by a…

A: Population proportion = 0.034 Favorable cases [x] =20 Sample size [n] =407 Sample proportion = x/n…

Q: Suppose you are an environmental researcher for an organization. As part of your research, you…

A: Givensample size(n)=43Mean(μ)=381standard deviation(σ)=31

Q: The data in the following table show the association between cigar smoking and death from cancer for…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: It is known that the prevalence of Tuberculosis in a community is 9% what would be the probability…

A: given data P(tuberculosis) = p = 0.09sample size (n) = 10x = no. of individual with tuberculosisP(x=…

Q: An article claimed that "those with a college degree reported a higher incidence of sunburn than…

A:

Q: A credit score is used by credit agencies​ (such as mortgage companies and​ banks) to assess the…

A: One sample t test: One sample t test is the hypothesis test that is used to test whether the mean of…

Q: Suppose that, in an experiment of casting a single die, six outcomes (X) are equally likely.…

A: Given,a single die is rolled than the possible out comes areS={1,2,3,4,5,6}Let X is the number on…

Q: M = 75.85 and SD = 6.38, what is the probability of a score falling below a raw score of 63.00?

A: Given that  Mean = M = 75.85 , Standard deviation = SD = 6.38 Raw score = X = 63.00

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: The objective of the question is to identify the type of observational study conducted based on the…

Q: If a hypothesis is tested at the a=0.05 level of significance, what is the probability of making a…

A: A hypothesis is tested at the  level of significance.

Q: Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a…

A: The hypothesized proportion of women in their 40s, who are never previously wed and are now being…

Q: You were told that the amount of time lapsed between consecutive trades on the New York Stock…

A: Let 'X' be the random variable representing the amount of time lapsed between consecutive trades.…

Q: estimate the probability of getting an offspring pea that is green. Is the result reasonably close…

A: In a genetics experiment on ​peas, one sample of offspring contained 436 green peas and 373 yellow…

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.