Twenty people were attacked by a disease and only 18 survived. Will you reject the hypothesisi that the survival rate, if attacked by this disease, is 85% in favour of the hypothesis that it is more, at 5% level. (use large sample Test.)

Q: #2 GIVEN THE DISTRIBUTION BELOW: CLASS 2-6 7-11 12-16 17 - 21 22-26 27-31 TOTAL FIND THE: (a) MEAN…

A:

Q: Assume that when human resource managers are randomly selected, 48% say job applicants should follow…

A: According to the given information, we have Sample size, n = 11 Probability, p = 48% = 0.48

Q: The random variable is the square of the maximum of the numbers. You roll three colored dice: 6 Give…

A: Given that  Roll three colored dice : 6 , 4 , 4

Q: Write the equation of the least-squares regression line defining any variables used. Round…

A: 5. It is needed to find the regression equation.

Q: #4 GIVEN THE 15 NUMBERS BELOW: 50, 50, 52, 55, 60, 60, 60, 65, 66, 66, 70, 72, 75,75, 80 FIND: (a)…

A: We have given the following data 50,50,52,55,60,60,60,65,66,66,70,72,75,75,80 Since the data is…

Q: A candidate vaccine intended to treat a bacterial disease is undergoing its first stage of clinical…

A:

Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…

A: Positive test result drug use is indicated Negative test result drug use is not indicated…

Q: proportion of males among patients discharged from Pennsylvania follows: Is the number (1.96) If…

A: Given that  95% confidence level.

Q: a. Between 72 and 90 b. Between 90 and 54 c. Above 108 d. Less than 72 e. Between 108 and 81 % % % %…

A: Answer: From the given data, Mean (μ) = 81 Standard deviation (σ) = 9 using the given diagram of…

Q: Choose the correct histogram below. OA. P(x) 0.5 0.4- 0.3 0.24 0.1- 0- C. P(x) 0.5- 0.4- 0.3- 0.24…

A: It is given that the Binomial distribution is P(X) = 6Cx*(0.2)x(0.8)6-x

Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…

A: The distribution is approximately normal if np(1-p)≥10.

Q: Amusement parks sell day passes and season passes. A day pass to Fun World costs $41 and provides…

A: A day pass to Fun World costs $41 and provides admittance to the amusement park for one day.  A…

Q: Suppose that a computer chip company has just shipped 5,000 computer chips to a computer company.…

A:

Q: this is a different question. it is not my question

A: Given that Sample size=17  Probability of success=0.748  Probability of failure=0.252 We have to…

Q: Not all visitors to a certain company's website are customers or potential customers. In fact, the…

A:

Q: Find the area of the shaded region, the graph to the right to pics IQ scores of adults in those…

A: Given,mean(μ)=100standard deviation(σ)=15

Q: There's a new treatment for addiction and because resources are limited, a program decides it can…

A: Given  Mean μ=145standard deviation σ=17.5 An excel function "=NORM.S.INV(probability to left)" is…

Q: A company receives a large number of job applications which are at first evaluated centrally at the…

A: Given that, there are three experts, each HR expert receives the same 12 applications for…

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

A: The question is about normal distribution Given : mean of the readings on the thermometers ( μ ) =…

Q: ) A study was conducted of the effects of a special class designed to aid students with verbal…

A: Introduction: It is required to set up the null and alternative hypotheses to determine if the…

Q: A random sample of 40 adults with no children under the age of 18 years results in a mean daily…

A:

Q: ← Analysis of the relationship between the fuel economy (mpg) and engine size (liters) for 35 models…

A: Given regression line model mpg^=36.88-3.843×Engine size.

Q: average is Normal, with mu = .268, and standard deviation, sigma = 0.02. What is the probability…

A: Given that.   X~N( μ , ?^2 )   μ=0.268    , ?=0.02   Z-score =( x - μ )/?

Q: Assume the random variable X has a binomial distribution with the given probability of obtaining a…

A: Binomial distribution :  The probability of obtaining x successes in the n independent trails of…

Q: A simple random sample of size n=44 is obtained from a population with μ=69 and σ=17. ​(a) What must…

A:

Q: Find the probability that exactly 7 of the 10 claims are made by males under age 25.

A: Given that  n = 10 , p = 50% = 0.50 , q = 1 - 0.50 = 0.50 X ~ Binomial (n = 10 , p = 0.50) X =…

Q: A set of X and Y scores has SSX = 10, SSY = 36, and SP = 20. The regression equation for these…

A: From the provided information, SSX = 10, SSY = 36 and SP = 20

Q: According to a survey of 1000 hiring managers across many different industries, 73% claim that they…

A: Given that  p = 73% = 0.73 , q = 1 - p = 1 - 0.73 = 0.27 , n = 5 X ~ Binomial (n = 5 , p = 0.73) X =…

Q: At Center Hospital there is some concern about the high turnover of nurses. A survey was done to…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: from a sample of 980 people. We see that 379 of the 460 females in the sample support gun control…

A:

Q: Consider the data. x₁ 1 2 3 4 Y₁ 4 7 5 4 12 15 The estimated regression equation for these data is ŷ…

A: Correlation: The statistical relationship between two variables is known as correlation.  The square…

Q: Food Meat Poultry Veal Tuna Yogurt Method 1 47 Source of Variation Treatments Blocks Error Total…

A: The objective is to validate if at least two of the treatments are different at the population…

Q: Testing for a disease can be made more efficient by combining samples. If the samples from six…

A: P( individual will positive result ) = 0.1 select 6 samples and combine it  combine result will…

Q: A trainee pilot has a 0.7 chance of passing the written exam for a private pilot's license.…

A:

Q: The 1989 U.S. Open golf tournament was played on the East Course of the Oak Hills Country Club in…

A: Probability: Probability is the ratio of favourable outcomes to all other potential outcomes of an…

Q: Suppose a math class contains 42 students. There are 22 females (two of whom speak Spanish) and 20…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Part D only please and solve without using excel only the Normal Curve table

A: Given that: For eastern DC, the mean and standard deviation are: μ=5.22σ=0.77 For western DC, the…

Q: what is the expected number of right-handed individuals in the sample? Define the random variable…

A: It is given that the residents are composed of 85% right-handed, 14% left-handed, and 1%…

Q: A jar contains 6 red marbles, numbered 1 to 6, and 10 blue marbles numbered 1 to 10. a) A marble is…

A: a) The jar contains 6 red marbles, numbered 1 to 6.

Q: Makayla is flying from Memphis to Oklahoma City with a connection in Denver. The probability her…

A:

Q: 15 Sometimes the word odds is used when referring to risk. However, this word is not used in a…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: American households increasingly rely on cell phones as their exclusive telephone service. It is…

A: Using the Binomial distribution probability.

Q: Healthy adults need at least 7 hours of sleep a night. (Teens need at least 9 hours.) A survey of…

A: Given information: It is given that healthy adults need at least 7 hours of sleep a night.

Q: Describe the purpose of a hypothesis. Then provide an example of a null hypothesis, a directional…

A: Given that  Describe the purpose of a hypothesis. Then provide an example of a null hypothesis, a…

Q: The increased number of small commuter planes in major airports has heightened concern over air…

A: GivenA montly average of nine near misses on landings and takeoffs in the past 5 years λ=9Let "x" be…

Q: In a student's biology class, the final grade is based on six categories. The categories, grades,…

A: category weight(w) grade(x) x*w test 1 0.17 45 7.65 test 2 0.18 98 17.64 test 3 0.18 45 8.100…

Q: According to estimates, 0.3 percent of residents in a given city own dogs. Calculate the likelihood…

A: The question is about discrete prob. distribution Given : Prob. that residents in a city own a dog (…

Q: In a large population, 62 % of the people have been vaccinated. If 4 people are randomly selected,…

A: Answer: From the given data, P(people vaccinated) = P = 62% = 0.62 Number of people selected…

Q: Find the probability that exactly 2 of the 7 claims are made by males under age 25.

A: Given that  p = 70% = 0.70 , q = 1 - p = 1 - 0.70 = 0.30 , n = 7 X ~ Binomial (n = 7 , p = 0.70) X =…

Q: roups of adults are randomly selected and arranged in groups of three. he random variable x is the…

A: X 0 1 2 3 P(x) 0.367 0.425 0.186 0.022