In research about the population of a county with 100,000 inhabitants, a sample of 3000 households was selected to be interviewed. For 1200 of the 3000 households that researchers attempted to contact, there was no one home willing to participate. For this survey, the nonresponse rate was ___________ .(Give your answer as a whole number.)

Q: Twenty-two different video games showing drug use were observed. The duration times of drug use ​(in…

A: Given: Sample size (n) = 22 Here, the test is conducted to check whether the population mean is…

Q: Alpha again Environmentalists concerned about theimpact of high-frequency radio transmissions on…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: In the startup world, one of the biggest issues that a young entrepreneur faces is the ability to…

A:

Q: A survey item administered at the end of a training program asked participants their opinion about…

A: The observed value (Oi) is:   Too much Too little Just Right Total Men 25 19 6…

Q: A sample of 1,000 crop-eating beetles are collected and dosed with a new pesticide. Researchers…

A: Given: n=1000x=639 The sample proportion p^ is obtained as below: p^=xn=6391000=0.639 From the…

Q: 1. Estimate the interval for the population proportion from each of the following. Then interpret…

A: Given: a) X=500, n=812 95% confidence b) X=842, n=1200 95% confidence c) X=523, n=972 99% confidence

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A: Given,n=500x=355p^=xn=355500=0.71α=0.05H0:P≥0.73Ha:P<0.73

Q: (e) forty-three percent of all trials of this type are completed within how many days?

A: Given Information: The duration of a particular type of criminal trial is known to be normally…

Q: Buffon's coin tosses that land head side up. Are you confident that this proportion is not 0.5? Why?

A: HERE GIVEN, n= 4040 x= no of heads occur = 2048 proportion of head  = p^ = xn = 20484040 = 0.5069…

Q: Blood pressure Diastolic blood pressure in adults is normally |distributed with µ = 80 mm Hg and o =…

A: Solution: Given information: Let X be the diastolic blood pressure in adults is normally distributed…

Q: Approximately 7% of the population has the O- blood-type. If you drew a random and independent…

A: p= 0.07   n = 2065

Q: (c) Consider the information given above and suppose that the number 10 was observed on 26 occasions…

A: here we data id provided that dice has 13 sides and it is rolled 208 times.

Q: Determine what proportion (n) of a population N of 4,000 will make your research work scientific in…

A: Given : Population Size (N) = 4000 Level of significance = 0.05 i.e Confidence level = 95% It means…

Q: Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24…

A: Control limits for x-bar chart: UCL=x¯¯+3R¯LCL=x¯¯-3R¯CL=x¯¯ Consider, Hour x¯ R 1 3.35 0.76…

Q: To compare the effects of four different chemicals in producing water restance in textiles, a strip…

A: Given that, to compare the effects of four different chemicals in producing water restance in…

Q: Class Exercise 28 Dengue Cases A local doctor is demanding immediate assistance claiming that the…

A: It was stated that a local doctor is demanding immediate assistance claiming that the rate of new…

Q: vith Exemor, and 195 find relief from their depression. Can we conclude, at the 0.01 level of…

A: Given : n1=402 , n2=587 , X1=146 , X2=195 ,  α=0.01 Here , we want to test the claim that the…

Q: s the newly hired manager of a company that provides cell phone service, you want to determine the…

A: It is given that margin of error (E) is 0.92 and the confidence level is 0.90.

Q: affected by a drought. Affected?/Type Pine Fir Cedar Total Yes 47 49 39 135 No 118 140 120 378 Total…

A: We have  to find expected values .

Q: A raffle has a grand prize of a European cruise valued at $13500 with a second prize of a Rocky…

A: Given dataA raffle has a grand prize of $13500with a second prize of $1100if each ticket costs $5…

Q: Use f = 0.05 in answering the following. Two-sample test for binomial proportion Test the…

A: Given information:-   Streptomycin Saline Died 67 157 Lived 194 104

Q: e dotplot shows the body mass index (BMI) for 133 randomly surveyed people from a tain country. A…

A:

Q: In a survey, the sample consisted of 1087 adults who were parents of school-aged children. The…

A: Given data in a survey the sample consisted of 1087 adults who were parents of school-aged children.…

Q: Given SST = 2415, SSE = 1725, n = 7, and k = 2, calculate the value of the overall F test statistic.…

A:

Q: 9. "Average adult Americans are about one inch taller, but nearly a whopping 25 pounds heavier than…

A: 1] Population mean μ=25 2] sample mean x¯=19.5 3] standard deviation s=8.6 4] sample size n=28 5]…

Q: For all people who went trick-or-treating, of interest is to determine the proportion who received…

A: The population is the set of all subjects of interest.

Q: ug in ribution of the number of accidents in 150 weeks. Number of Accidents 0 |Observed frequency 1…

A: Frequency distribution of the number of accidents  Number of Accidents Observed Frequency 0 50…

Q: A researcher selects a sample of 100 people to investigate the relationship between gender…

A: Given ,                Males      Females        TotalRegistered    40           30…

Q: A certain county had a population of 34,485 people. The county hospital is interested in estimating…

A: They test blood samples from 228 patients. Out of this group, 10 have blood type-O. The probability…

Q: An Insurance company evaluates many numerical variables about a person before deciding on an…

A:

Q: In a survey, the sample consisted of 1087 adults who were parents of school-aged children. The…

A: Given : Mean , x̄ = 5.5 Median = 1

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A: Here the stem and leaf diagram is given. Let us generate original data from the stem and leaf plot.…

Q: An inpatient coder in the HIM department is expected to code 400 charts each month. A total of three…

A: Solution: a. From the given information, total number of charts were coded is 1,250 and out of which…

Q: Property Crime. As reported by the Federal Bureau of Investigation in Crime in the United States,…

A: Let A is the crime committed in rural areas and B is the crime under burglary.From the provided…

Q: Determining the class standing (1st, 2nd, and so on) for the graduating seniors at a high school…

A: Introduction: Scales of measurement: Nominal: When the possible observations are tags or categories…

Q: Twenty-five percent of the customers entering a grocery store between 5 P.M. and 7 P.M. use an…

A: Given information: The probability that a randomly selected customer entering a grocery store…

Q: g. What is the LCL of the 5th class interval? h. What is the cumulative frequency of the 1st ciass…

A: We are allowed to answer three subparts at a time, since you have not mentioned which part you are…

Q: a study of government financial aid for college students, it becomes necessa ur years or less. Find…

A: Given We are not given any information about the percentage to  be estimated. We know that there…

Q: State H0 and Ha.

A: Let p be the population proportion of​ successes, where a success is an adult in the country who…

Q: Oxygen consumption was measured in twelve individuals while they sat with their eyes closed…

A: X Y D=Y-X D-Dbar (D-Dbar)2 6.1 7.2 5.7 6.4 5.8 6.2 5.4 6.7 5.4 4.2 4.0 4.1…

Q: Thirteen different video games showing drug use were observed. The duration times of drug use ​(in…

A: Given n=13

Q: An education researcher claims that 60% of college students work year-round. In a sample of 200…

A: Null and alternative hypotheses: The investigator is specifically interested to test whether the…

Q: In a national survey conducted by the Centers for Disease Control in order to determine health-risk…

A: firstly convert all data into percentage (%) and then convert into degree and then draw pie…

Q: 4. In statistics, the formula E = t can be used to calculate a margin of error. Solve this formula…

A: This exercise concerns changing the subject of the equation from E (error) to n( the sample size)

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A:

Q: A manager states that in his factory, the average number of days per year missed by the employees…

A: Given that the a manager states that in his factory, the average number of days per year missed by…

Q: he following times (in seconds) were recorded when statistics students participated in an experiment…

A: Given data set - 53   52   75   62   68   58   49   49

Q: There are 435 seats in a​ nation's House of Representatives. The number of representatives per state…

A: Introduction: It is given that the allocation of the number of representatives from a state in the…

Q: ACT scores range from 1 to 36 and are normally distributed where N (21.5, 5.4). SAT scores• range…

A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

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.