Physicians at a clinic gave what they thought were drugs to 860860 asthma, ulcer, and herpes patients. Although the doctors later learned that the drugs were really placebos, 5050 % of the patients reported an improved condition. Assume that if the placebo is ineffective, the probability of a patients condition improving is 0.470.47. For the hypotheses that the proportion of improving is 0.470.47 against that it is >0.47>0.47, find the p-value. p=p=

Q: A study was conducted to determine whether pneumonia is associated with Covid-19. Of the 275 cases,…

A: Strength of association between the two variable with exposure and the disease used to take…

Q: Each student drew a simple random sample of fifty students and created a 99% condfidence interval…

A: It is given that student has drawn a simple random sample of fifty students and created a 99%…

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: When Mendel conducted his famous genetics experiment with peas, one sample of offspring consisted of…

A: Obtain the 95% confidence interval estimate of the percentage of yellow peas. The 95% confidence…

Q: 33% of the Population has 20/20 vision if 70 individuals are selected at random from the Population…

A: Sample size : n = 70P(20/20 vision) : p = 0.33x = Number of people with 20/250 visionMean of X :  =…

Q: A racing car consumes a mean of 107 gallons of gas per race with the variance of 49. If 46 racing…

A: The following information has been provided: The population mean is μ=107. The sample variance is…

Q: Explain how the probability of extinction and the mean population size of a species after a…

A: the Colonization and extinction probabilities  were defined in terms of the habitat state at both…

Q: The average time it takes a music producer to complete a recording of a pop song is 53.5 minutes.…

A:

Q: Example: If 25 percent of all patients with high blood pressure have bad side effects from a certain…

A: The probability that a patient with hypertension may have negative side effects from a particular…

Q: what can be said about the probability of committing a Type II error?

A:

Q: Use the Minitab to simulate 10,000 rolls of two dice. Find the number of times that the sum of the…

A: Given information: It is given that 2 dice should be rolled.

Q: by pany robability that the proportion of defective television

A: Given: EX=0.25VX=0.0375 P(0.2 < X < 0.5)

Q: Two years ago a public health researcher found that 27% of American teens regularly vaped a…

A: Answer:- Two years ago a public health researcher found that 27% of American teens regularly vaped…

Q: Investigators studied the relationship between taking a new drug versus placebo on lowering blood…

A: Based just on the p-value for the Breslow Day test, we can conclude the following:There is not…

Q: Step 1: State the 2 hypotheses Step 2: Select the distribution and specify the a-value.…

A:

Q: The lifetime of an electronic deivce is modeled as an exponential random variable. If 12% of the…

A:

Q: A researcher randomly assigns 118 critically ill patients to receive a drug and 234 to receive a…

A: Consider a contingency table.   Yes No Yes a b No c d   Then the odds…

Q: Household incomes in the city of Tampa Bay  are right-skewed with an average of 50,270 and standard…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: In a study of work patterns, data from 669 subjects were collected. For the time spent in child…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 23.08,…

Q: When Mendel conducted his famous genetics experiments with peas, one sample of offspring consisted…

A:

Q: A random variance survey of 495 adults found that 59 had diabetes. which of the following is a 98%…

A:

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: A statistical study is made to compare the % of smokers in small rural towns to the overall smoking…

A: Given Information:n=1500x=285c=95%=0.95

Q: The lifetime of an electronic deivce is modeled as an exponential random variable. If12% of the…

A:

Q: If the population mean weight is increased to 100.15 lb, what is the probabilitythat the sample mean…

A: As per given by the question, what is the probability that the sample mean of weight of a sample of…

Q: The mean weight of an adult is 62 kilograms with a variance of 144. If 195 adults are randomly…

A:

Q: 2/5 of all assignments are mandatory. 1/20 of those assignments contain the phrase "use your…

A: Consider the following events:M: the assignment is mandatory.U: the phrase "use your imagination" is…

Q: A child dying from an accidental poisoning is a terrible incident. Is it more likely that a male…

A:

Q: If the probability of contracting a certain illness is 0.0433, would it be considered statistically…

A: Let p be the probability of contacting a certain illness  Given  p=0.0433

Q: Researchers claimed that women exercise at the same proportion as men do. To test this claim, a…

A: For the given data Perform Z test for two proportions

Q: A racing car consumes a mean of 103103 gallons of gas per race with a variance of 3636. If 3838…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

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: In a sample of 1901 patients who underwent a certain type of surgery, 22% experienced complications.…

A:

Q: A medical study showed that 57 of 300 persons failed to recover from a given disease. Find a 95%…

A: Sample size: Number of successes: Confidence level:

Q: Too much cholesterol in the blood increases the risk of heart disease. The cholesterol levels of…

A: We have to find given probability.

Q: Person 1 (X) = 1 hour, z = -0.5 Person 2 (X) = 3 hours, z= 0.5 Person 3 (X) = 4 hours, z= 1 4. Using…

A: The question is about normal dist. Given : Person 1 ( X ) = 1 hr. , z = -0.5 Person 2 ( X ) = 3 hr.…

Q: A research center claims that at least 23% of adults think their taxes will be audited.  A random…

A: Yes, there is a enough evidence to reject the claim Explanation:Step 1 : Formulate the hypothesis…

Q: Given a normal population with mean = 39 and variance = 16, what is the probability of obtaining an…

A:

Q: The lifetime of an electronic device is modeled as an exponential random variable. If 16% of the…

A:

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: It currently takes users a mean of 2222 minutes to install the most popular computer program made by…

A: Claim : the new mean is now different from 22 minutes so that they can change their advertising…

Q: Suppose that in a sample of 30 patients, the variance of a randomly selected person having a genetic…

A: From the provided information, Sample size (n) = 30 Variance (σ2) = np (1-p) = 3.7

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.