An office supply company conducted a survey before marketing a new paper shredder designed for home use. In the survey, 87% of the people who used the shredder were satisfied with it. Because of this high acceptance right, the company decided to market the new shredder. Assume that 87% of all people who use it will be satisfied. On a certain day, 11 customers bought this shredder.  a) let x denote the number of customers in this sample of 11 customers who will be satisfied with this shredder. Find the mean and Standard deviation of x.  Mean=  SD=  b) find the probability that exactly 9 of the 11 customers will be satisfied  P(x=9) =

Q: a study is conducted to access the impact of caffeine consumption, smoking, alcohol consumption, and…

A:

Q: Five pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean…

A: Five pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean…

Q: In 2015 2,494 Americans who were employed full time were surveyed by the Harris Poll about gender…

A: topic - probability

Q: 2. Identify the kind of sample as simple random sample or convenience or stratified or cluster or…

A: We know that their are different sampling methods used in the different situations.

Q: 11) For a survey, individuals were asked if people with "extreme views" should be allowed to give…

A: (a)   State the hypotheses.   Let pM denotes the population proportion of all males Let pF denotes…

Q: A new women’s high heel dress shoe has been designed that is suppose to add support leading to…

A: In the question it is asked to choose the option which is most likely to be the best for the study.…

Q: 3% of a country’s voters are dissatisfied with the direction of the government. Suppose a SRS of 50…

A: a) Let X is a random variable which follows Binomial distribution with n = 50 and p = 0.53.…

Q: Babies 6 to 23 months of age with inner ear infections were given antibiotics.  The children were…

A: We have given that The children were randomly assigned to receive antibiotics for a full 10 days or…

Q: a.) the probability that the student will get exactly 6 correct answers b.) the probability of…

A: Here given  If Y is the number of correct answers that a student will get in a 10-item multiple…

Q: d) A South African manufacturer of BMW cars offers a model in one of three colors: Blue, Red, or…

A:

Q: Sample space S is partitioned into E₁, E2, and E3 such that P(E1. a) Find P(E3). b) Find the odds in…

A: We have to solve given problems:

Q: The Diversity, Equity, and Inclusion (DEI) office of a major multinational bank is investigating the…

A: n = 1650 P = 12% = 0.12 Formula Used: The Mean of the sample proportion μp^ = p Standard deviation =…

Q: Find the median AS US fi LL UL 23 25 4 26 28 29 31 9

A:

Q: ) Find the probability that exactly 3 in the sample are unemployed.  b) Find the probability that…

A: Let X be the random variable the number of people who are unemployed.Given that,Here X has the…

Q: An ecological study was carried out to assess the rates of vegetation growth at four marshy…

A: For the given data, we need to test ANOVA t-test at 0.05 significance  level.

Q: Suppose an unfair, standard six-sided die is tossed and the probability of tossing a three is 0.21.…

A: Given that an unfair, standard six-sided die is tossed. The probability of tossing a three is 0.21…

Q: A sample of 317 people is surveyed. The people are classified according to political affiliation…

A: Formula : Probability = number of favourable outcome/ total number of outcomes

Q: What is the uncertainty or Standard Error for this difference in proportions? (F

A: Here For People uses Internet Regularly Sample Size=n1=1754 x1=807 p1^=8071754=0.46 Now For people…

Q: (a) Let a be the weight of a juvenile condor. Write the possible unique values for a: (NOTE:…

A:

Q: of 830 Americans was randomly selected on the population of all American adults. Among other…

A: (a) The sample proportion of Americans who believe the US will land a human on Mars by 2050 is:…

Q: b) It is known that 25 percent of new hiring employees change their jobs in the first year .…

A: We have given that  b). Sample proportion p = 25% = 0.25 sample size n=18. In Binomial distribution,…

Q: USA Today surveyed a random sample of 4787 Americans that resulted in 1148 stating that they make no…

A: First, we need to calculate the proportion of Americans who make no purchases using cash in a…

Q: 2) A baseball pitcher threw 3848 pitches during part of a recent season. Of these, 1372 were thrown…

A: Since you have asked multiple question, according to our guidelines we can solve the first question…

Q: An article included data from a survey of 2686 hiring managers and human resource professionals. The…

A: From the provided information, Sample size (n) = 2686 Out of which 1500 indicated that they use…

Q: A shipping company claims that 95% of packages are delivered on time. A student wants to conduct a…

A: Simulation of an experiment can be conducted using the random numbers. If the proportion of success…

Q: comma.) e condor. write the pos an of the population: nique values for an of the sampling…

A:

Q: A local county has an unemployment rate of 4.9%. A random sample of 15 employable people are picked…

A: Hello! Thanks for the question. We are answering the first 3 parts as per guidelines. Given…

Q: As part of a study on how people of different ages use mobile technology, each person in a sample…

A: Hypothesis test are used to measure the two sample came form the same population or not. It has two…

Q: In 2008, 46% of business owners gave a holiday gift to their employees. A 2009 survey of business…

A: Given that Sample size (n)=60 Sample proportion=35% =0.35 Population proportion=46%=0.46 We have to…

Q: K The mean waiting time at the drive-through of a fast-food restaurant from the time an order is…

A: The manager has implemented a new drive-through system and collected data on the wait times for 10…

Q: The matchsticks in 10 packages of matches randomly selected from the matches produced by a match…

A:

Q: A survey of cars on a certain stretch of highway during morning commute hours showed that 62.0% had…

A: X = The number of occupants in a randomly chosen car.xP(x)10.6220.1530.1840.0350.02

Q: A coin has two sides "USD" and "Head". When this coin is tossed, the probability of it the "USD"…

A: Given : there are two possible outcomes when a coin is tossed . USD with probability 2/3 Head with…

Q: Suppose all people can be classified as either left-handed or right-handed. According to the current…

A: The objective of the question is to determine the proportion of people who are left-handed, the…

Q: An education researcher randomly assigns a group of 47 fourth grade students to receive a new…

A: Solution: Two sample t test: If the collected two samples are independent, two sample t-test should…

Q: In a random sample for 56 professional actors, it was found that 46 were extrovert.let p represent…

A: Given that in a random sample for 56 professional actors, it was found that 46 were extrovert. i.e.…

Q: Two dices are tossed and the absolute difference of the two dices reading is calculated. a)    Find…

A: a) When two dices are tossed , the sample space is  S = {(1,1), (1,2), (1,3), (1,4), (1,5), (1,6),…

Q: in a random sample of 56 professional actors,it wa sfound that 46 were extroverts. let p represent…

A: Given that there are 56 professional actors and there are 46 extroverts among 56 professional…

Q: What proportion of 20% of defective items should a supervisor in the quality system of a plastic…

A: a) What proportion of 20% of defective items should a supervisor in the quality system of a plastic…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.