6. The following is a random sample of scores on an attitude toward family planning scale for husband (sample 1) and wife (sample 2) pairs: Pair 12345678 8 1 b. Construct a 95% CI. 1 2 44 4 4 57 7 7 8 a. Test the following hypothesis at the .05 level of significance. Ho :"1— Us=0 H₁: M₁-M₂0 2 33657899 10

Q: 2.6-4. Suppose an airport metal detector catches a person with metal 99% of the time. That is, it…

A: We have given thathere, probability of success, that is a detector fails to catch a person with…

Q: 236. A sample of the number of study hours per week of college students is collected. Some of the…

A: The sample results of the survey are given as Study hoursZ-score percentile…

Q: A study was conducted on students from a particular high school over the last 8 years. The following…

A: Given sample mean of SAT Score=1103Sample standard deviation SAT Score = 203Given the sample mean of…

Q: Each member of a random sample of 15 business economists was asked to predict the rate of inflation…

A: Sample size, n = 15Population standard deviation,

Q: 75.9 72.7 73.8 74.2 78.1 75.4 76.3 75.3 76.2 74.9 78.0 75.1 76.8 If necessary, round all…

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

Q: Use z scores to compare the given values. Based on sample data, newborn males have weights with a…

A: Newborn males have weights withMean()=3282.7standard deviation()=689.7Newborn females have weights…

Q: FDIC bank failures. The Federal Deposit Insurance Corporation (FDIC) normally insures deposits of up…

A: X~Poisson distribution. Mean=29

Q: Does it take less time for seeds to germinate if they are near rock music that is continuously…

A: The number of seeds were exposed to rock music, The number of seeds were exposed to classical music,…

Q: 16. Use the given probability value to determine whether the sample results could easily occur by…

A: The sample size, n=104The number of pregnant women correctly predicted the gender of their baby =…

Q: 184. Michael and Lorenzo both took the same calculus test. Mi- chael scored an 87 on the test.…

A: We have givenMichael score ( X1) = 87Lorenzo z-score(Z) = + 1.2 Lorenzo mean and standard deviation…

Q: Write the normal probability for the shaded region of the graph and find its value. Select the…

A: Given,n = 16p = 0.55q = 0.45

Q: (Exponential distribution) An expert says that the number of days before a new case discovered for a…

A: Mean=5Let "x" be the number of days before a new case discoveredA random variable…

Q: The formula for the sum of squares due to treatments, SSTR, follows where n, is the number of…

A: Given that : k= 23 treatements or groups Each group has 5 observation. We have to fill the missing…

Q: The accompanying data represent the total travel tax​ (in dollars) for a​ 3-day business trip in 8…

A: The data related to the total travel tax​ (in dollars) for a​ 3-day business trip in 8 randomly…

Q: Find a reference to a poll or study in recent news (last few weeks ideally, earlier if you must.)…

A:

Q: For the standard normal distribution shown on the right, find the probability of z occurring in the…

A: Z has follows standard normal distribution with mean zero and standard deviation one.

Q: While driving in the car with his family Jeffery likes to look out the window to find punch buggies.…

A: The question is about discrete probability distribution.Introduction :If X is a random variable…

Q: Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean…

A: Solution-:Given: We want to findP(the sample mean would be greater than 147.1 millimeters)=?

Q: Do students perform the same when they take an exam alone as when they take an exam in a classroom…

A: From given data we have : AloneClassroomdiff.857411888177879-186806776988171108380371665

Q: In a recent year, the mean weight of newborn boys in a certain country was  7.5 pounds. A doctor…

A: In a recent year, the mean weight of newborn boys in a certain country was 7.5 pounds.

Q: The number of ships to arrive at a harbor on any given day is a random variable represented by x.…

A: x1011121314P(x)0.310.150.10.120.32

Q: Determine the sample size required to estimate a population mean to within 11 units given that the…

A: E=11,σ=50,CI=95%=0.95α=1−CI=1−0.95=0.05

Q: (c) Construct a 95% confidence interval for the population standard deviation of the number of…

A: A sample of 12 jars of peanuts from the storage faculity and measures their contents.

Q: Let z be a standard normal random variable with mean μ = 0 and standard deviation = 1. Find the…

A: X follow with mean zero and standard deviation is 1.

Q: Company XYZ know that replacement times for the portable MP3 players it produces are normally…

A: Mean()=3.2 yearsStandard deviation()=0.9 years

Q: If 1 subject is randomly selected from the 555 subjects given a drug test, find the probability of…

A: Table ​Positive Test Result​(Test shows drug use)​Negative Test Result​(Test shows no drug…

Q: Answer the question for a normal random variable x with mean μ and standard deviation o specified…

A: Let X be the random variableGiven, X follows normal with µ=1.2 and σ=0.14

Q: a) Which of the following is the correct answer to 0.0048×0.720.0048×0.72 in scientific notation? b)…

A: 37 45 55 30 42 60 48 52 38 50 43 58 36 38 46 49

Q: Assume a member is selected at random from ** the population represented by the graph. Find the…

A: Mean=267Standard deviation=10

Q: Suppose the probability of contracting a certain disease is 1 in 69 for a new case in a given year.…

A: P( new case) ==0.0145q=1-p=1-0.0145=0.9855n=110 people

Q: Need help with part D please E G      thanks

A: From the above parts and given information we have sample sizes n1 = 594, n2 = 506Favorable cases…

Q: For each of the following situations, write down the likelihood function L(θ), where θ is the…

A: is the probability of heads.and  is the likelihood probability.

Q: 10 grams. If you pick one fruit at random, what is the probability that it will weigh between 655…

A: Mean = 676Std. deviation = 10

Q: Need help with questiones D E F please

A: From the above given parts we havesample sizes, n1= 43, n2 = 46Sample means, Population standard…

Q: The Excel file Auto Survey contains a sample of data about vehicles owned, whether they were…

A: Consider the given data: GenderTypePurchasedVehicle…

Q: Find the margin of error for the given values of​ c, σ​, and n. c=0.90​, σ=2.3​, n=81 Level of…

A: Given, c=0.90, σ=2.3 and n=81.

Q: Use the spinner shown. It is equally probable that the pointer will land on any one of the six…

A: In spinner One grey, three blue and two purple.

Q: A total of 8 popular brands of cola are to be used in a blind taste study for consumer recognition.…

A: The total number of brands is 8. The number of brands chosen randomly is 5.

Q: Refer to the sorted data speeds below. Find the 40th percentile, denoted by P40. 15.9​ 19.3​…

A: 15.9​,19.3​,19.4​,20​,20.1​,21.0​,21.0​,21.6​,21.6​,23.2​,24.5​,24.6​,24.8​,25.5​,25.8​,25.8​,25.9​,…

Q: For each situation, state the null and alternative hypotheses: (Type "mu" for the symbol μ , e.g. mu…

A: Null Hypothesis (H1): It is known that a null hypothesis is a hypothesis which is under test or a…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step…

A: A sample of 549 tankers is drawn of which 98 had spills.

Q: A machine can be in one of four states: 'running smoothly' (state 1), 'running but needs adjustment'…

A: Given that  to be the state of the machine on the morning of day  for .

Q: What is the approximate forecast for November using a four-month moving average? Oct - 700 Sept -…

A: We have given the actual demand for months, we have to forecast for November using a four-month…

Q: a. What is the probability that more than half have passed the exams? b. What is the probability…

A: Given,the pass percentage in 2020 CBSE 12th grade = 88.78%.percentage of students who scored 90% and…

Q: The density of people per square kilometer for African countries is in table #2.2.11 ('Density of…

A: The given data represents the density. The given number of classes for the frequency table is 7.

Q: (a) What are the values of a and B? a = B = (b) What is the probability that a student uses the…

A: Mean=12, variance=36

Q: manufacturer knows that their items have a normally distributed lifesp andard deviation of 0.5…

A: Population mean=2.5Population standard deviation=0.5

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Normal distribution

Q: For a standard normal distribution, find: P(0.16<z<0.66)

A: Z table that use in given probability :

Q: If the A x B interaction is significant, then at least one of the two main effects also must be…

A: It is given that the A x B interaction is significant. So, if we assume that A and B are two…