Nhat proportion would you expect to have less than 5 accidents?

Q: In a survey of 1380 households, 1155 families said that they eat out at least once a week.   What is…

A:

Q: A survey was conducted to find if modern young people want to have many children. 453 young men were…

A: The margin of error formula is given as follows,  z = 1.96 using z-table as 95% confidence interval…

Q: Label the diagram.  Using the diagram what can you conclude about the approximate percentage of home…

A:

Q: Find the value of E, the margin of error.

A: sigma = 3.5 n = 10 t-critical value at 0.1 and df(9) = 1.8333 Excel formula used: "=T.INV.2T(0.1,9)"…

Q: A survey of 78 snowmobilers revealed that 51 of them have driven under the influence of alcohol.…

A: Given data, n=78 x=51

Q: hat the mean cost per unit for plants using electricity, µ1, is less than the mean cost per unit for…

A: Given : n1=13 , n2=8 , X1-bar=43.98 , X2-bar=52.70 , s1=7.94 , s2=8.51 ,α=0.05 Since , the…

Q: What scale of measurement is being used when a teacher measures the number of correct answers on a…

A: Nominal : Nominal scale are used to classify objects, groupsexample gender, country etcOrdinal:…

Q: knowing the mean will be within ±0.5 mm?

A:

Q: - When the deposite of efflorescence is more than 10 percent and less than 50 percent of the exposed…

A: When the deposite of efflorescence is more than 10% and less than 50% of the exposed area of brick ,…

Q: 2. Let sample proportion . How large a sample should be taken to be 95 % sure that the error of…

A: As per our guidelines we are supposed to answer only one question per post. Given that, margin of…

Q: What is expression for F RATIO (REPEATED MEASURES)?

A: Repeated Measures ANOVA is the one-way ANOVA used for dependent groups and is thus an extension of…

Q: 2. Let sample proportion . How large a sample should be taken to be 95 % sure that the error of…

A: Let proportion be p=0.50 E=0.02 z-value at 95% confidence is Zc=1.96 n=?

Q: Biologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that are…

A: According to the provided data, a biologist wants to estimate the percent of crabs in a certain area…

Q: a margin of error o

A: Given that  Annual starting salaries for college graduates with degree in business administration is…

Q: 5. A metal plate is supposed to be 15.75 cm long but after it is cut, it measures 15.71 cm.…

A:

Q: Q4. Among 100 fish caught in a certain lake, 18 were inedible as a result of chemical pollution.…

A:

Q: Researcher reports an F-ratio with df = 2, 27 from an independent-measures research study. How many…

A: Given, Researcher reports an F-ratio with df = 2, 27 from an independent-measures research study.

Q: The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An…

A: Given ,population proportion (P) =0.152sample size (n)=594No.of report experiencing migraines(X)=71

Q: is one way to find the missing number in a proportion. adding O cross multiplication O crossing…

A: Given that we need to complete the following statement by using right option . As we know that to…

Q: ou want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Sample Size: The formula for the sample size is as follows: Here, zα/2 is the critical value at 98%…

Q: Let sample proportion . How large a sample should be taken to be 95 % sure that the error of…

A:

Q: The mean GPA for 138 residents of the local apartment complex is 1.9. What is the best point…

A: Solution: From the given information, the mean GPA for 138 residents of the local apartment complex…

Q: 4. Sophia scored at the 10th percentile (P10) on exam 1. She claims that this means she outperformed…

A: Given, Sophia scored at the 10th percentile on exam.

Q: Q5- Describe in detail different scales of measurement.

A: To answer this we have to know about different scales of measurement.

Q: What percent of people have WAIS scores below 100? Above 1307 Below 70? Answer(s) Above 100: 50%…

A: mean = 100 standard deviation = 15 A) P(X<100) = P(X<100-10015)…

Q: In an outbreak of typhoid fever among attendees of an acquaintance party, 99 persons ate spaghetti,…

A: Given that:  n1=99  x1=30 n2=63 x2=20

Q: Vhat percentage of values lie below 3?

A:

Q: The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.)

A:

Q: +4 ley conducted an anonymous survey of his class, to find out how they did on the last test. He…

A:

Q: On a placement examination, Fatimah scored lower than 420 of the 980 students who took the exam.…

A: It has been given that Fatimah has scored less than 420 of 980 students which means her score is…

Q: What is the approximate percentage of students who scored between 29 and 71 on the test? Round to…

A:

Q: Cholesterol levels of 200 or higher are considered high for teenagers. What percent of teen boys…

A: Given Data Population Mean,μ = 151.6 Population Standard Deviation,σ = 25.0

Q: A car dealer sells K cars in a year. what is the monthly average for the number of cars sold?

A:

Q: Vhat is the approximate percentage of buyers wh aid between $1740 and $1860? Vhat is the approximate…

A: We have given that,  Let X be the random variable from normal distribution with mean = 1800 and…

Q: a researcher wants to find the proportion.  what size sample should be obtained in order to be 90%…

A: We have given that,  Confidence interval = 90% and Margin of error (E) = 3% = 0.03 Then,  We will…

Q: newspa cable gives the number of people who do not e interval for the true population proportion e…

A: Here, We need to construct the 95 % confidence interval for the population proportion of people who…

Q: Systolic blood pressure for men over age 40 has a u- 135 and a- 7. What is the range of the middle…

A:

Q: Greg works as a carpenter. There is a 3 percent chance he loses a finger which they value at…

A: Given: Probability of losing finger is, PE=3%=0.03. Expected insurance value is, Ci=$200000. The…

Q: O mean increases by 7.6

A:

Q: 18. Ms. Dunn's class wants to estimate the number of blades of grass in a lawn that is shaped…

A: In each square of 1 foot x 1 foot , they found an average of 37 grass blades.    Total number of…

Q: PROCEDURE: A. Given the observed values below, is there an agreement between the expected and…

A: Chi-square test of goodness to fit is used to test whether the population follows the specified…

Q: At a restaurant, when a customer buys 4 pretzels, the fifth pretzel is free. Soft pretzels cost…

A:

Q: A carnival had a board with 25 balloons placed as in the drawing. To win, you must hit a balloon…

A:

Q: What percentage of pregnancies last beyond 254 days? P(x > 254 days) = P(z >

A: Here, µ = 268, σ = 14.

Q: You are interested in conducting a study to determine the proportion of Thunder Bay high school…

A:

Q: 2. In one town, 64% of adults have health insurance. W random from the town all have health…

A: Comment: As per the our company guidelines we are supposed to answer only one question. KIndly…

Q: Is parameter proportion the same as statistical proportion. so lets say the statistical proportion…

A: it is given, statistical proportion =0.49

Q: What percentage of IQ's are: a Greater than 95? b. Less than 120? c. Between 90 and 110?

A: Let X be the random variable from Normal distribution with mean (μ) = 100 and standard deviation (σ)…

Q: Calculate the margin of error for this survey. Round the percentage to one decimal place. Do not…

A: Since confidence level is not given, consider it as 95%. Computation of critical value:…

Q: jocelyn estimates that a piece of wood measures 5.5 cm. if it actually measures 5.62 cm, what is the…

A: Given : Jocelyn estimates that a piece of wood is 5.5 cm. The actual measures 5.62 cm. The error is…

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.