Q1) b- for the following data, (19, 32, 26, 71, 88, 45, 59), the Harmonic Mean (H) is 37.4406 O 37.6044 O 37.4064 O 37.0644 O none of all above O

Q: Exposed persons Unexposed persons Those who ate suspected foods Those who did not eat suspected…

A:

Q: Find the value of z that has 72% of the standard normal distribution's area to its left. Report your…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Suppose that in a random selection of 100 colored candies, 22% of them are blue. The candy company…

A: The hypothesized proportion is 0.3.

Q: i. Determine i. Determine the covariance the correlation of X and Y. of X and Y.

A: From the given information, fx,y=x2+xy3, 0<x<1, 0<y<2gx=2xx+13hy=13+y6 i) Covariance of…

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

A: Answer:

Q: A particular fruit's weights are normally distributed, with a mean of 422 grams and a standard…

A: The following information has been given: The population mean is μ=422. The population standard…

Q: 145 people To test the hypothesis, a simple random sample of 41 Veterans Day celebrations was…

A: The population mean is μ=145. The sample size is n=41. The sample mean is x¯=157. The sample…

Q: For a standard normal distribution, find: P(-2.76 <z<2.32)

A: The z values are -2.76 and 2.32.

Q: ngineering Data Analysis. No long explanation needed. Rate will be given! Multiple Choice The…

A: Solution-: Given: μ=485, σ=32 We want to find, P( a battery chosen in random will have 450 to 550)=?…

Q: nts and we observed the number Y of people who improved. The hypothesis is: H0 : p = 0.8 vs H1 : p…

A: Considered research experiment for the proportion value is 0.8 at 20 sample size z-score…

Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 38…

A:

Q: Suppose the distribution of scores of 1000 students who take a standardized intelligence test is a…

A: Given: n = 1000 μ = 450 σ = 35

Q: Jesse scored a +12 while golfing and, 18 points while playing basketball. The statistics for his…

A: The mean and standard deviation of sport golfing are 14.2 and 3.2, respectively.

Q: At a= 0.05, is there a significant difference on your sample average price if the market average…

A:

Q: The table below gives the estimated world population (in billions) for various years. 1980 1990 1997…

A: Let X=Years: 1980,1990,1997,2000,2005,2011  Let Y=Population: 4400,5100,5852,6080,6450,7000

Q: A state housing department is trying to determine if housing prices in county B are lower than in…

A:

Q: The quality control officer thinks there is a problem with one of the machines that places the…

A: The given data indicates the volume of lotions in the bottles. The volume of lotion that should be…

Q: Use Chebyshev's theorem to calculate an interval with 80% of the data, with mean 17 and standard…

A:

Q: The number of customers served at a busy restaurant on Thursdays follows a Normal distribution with…

A: The mean is 6352 and the standard deviation is 254.

Q: √(x, y) = {x ² + 7,0 < 0, +0<x< 1,0 < y < 2, elsewhere. g(x)=2x (x + 1/3), h(y)= 1/3 + y/6.

A: The given pdf is fx,y=x2+xy3 , 0&lt;x&lt;1,0&lt;y&lt;20             elsewhereg(x)=2xx+13h(y)=13+y6

Q: A sample of 20 joint specimens of a particular type gave a sample mean proportional limit stress of…

A: Given: Sample size n = 20 Sample mean X = 8.47 Sample standard deviation s = 0.76 Formula Used:…

Q: Finish times to the nearest hour for 57 dog sled teams are shown below. Use 5 classes. Categorize a…

A: Given: Finish times to the nearest hour for 57 dog sled teams

Q: Calculate the mea Ag 5 6

A:

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of…

A: Ans#  Given the amounts of nicotine in a certain brand of cigarette are normally distributed with…

Q: Given it mean, standard deviation, and a raw score, find the corresponding Z score. Assume the…

A: Given,mean(μ)=60standard deviation(σ)=4raw score(x)=70

Q: The results of a common standardized test used in psychology research is designed so that the…

A:

Q: Does crime pay? The FBI Standard Survey of Crimes showed that for about 80% of all property crimes…

A: Givensample size(n)=4The probability that case is never solved=80%The probability for the case is…

Q: 71 6,911,876 07 834,541 26 757,364 83 661,428 91 485,851 EDEREE

A: Total death caused in the population which is divided by population size where age specific rate can…

Q: ecause of practical considerations you ultimately decide to survey 100 people and find that 75 of…

A: here , from 100 people and find that 75 of them would prefer to work at home to some extent. n = 100…

Q: Q3. Given the set: (11,13,7,9,14,18,10,13,9) a) Find the five number summary of the data set. b)…

A: (a)   Obtain the five number summary.   Use EXCEL Procedure to obtain the value of first quartile.…

Q: ou must estimate the mean temperature (in degrees Fahrenheit) with the following sample…

A:

Q: The consumption function captures one of the key relationships in economics. It expresses…

A: Note that I used Excel software for my calculations.

Q: A dietician selected a random sample of n = 50 male adults and found that their average daily intake…

A: we know;sample size(n)=50sample mean(x¯)=756 grams/dayand sample s.d.(s)=35 grams/dayfor confidence…

Q: The college student senate is sponsoring a spring break Caribbean cruise raffle. The proceeds are to…

A: Given that

Q: Due to random variations in the operation of an automatic coffee machine, not every cop is filled…

A: Mean (μ)=9 Standard deviation (σ)=0.6

Q: HI believe that they have seen a UFO. For a sample of 10 Belief in UFOs A survey found that 10% of…

A: here given  Belief in UFOS A survey found that 10% of Americans believe that they have seen a UFO.…

Q: A company that develops an automated customer service model is interested in knowing whether two…

A:

Q: if the probability of a machine producing a defective part is 0.05, what is the probability of…

A: Given Sample size=100 Exactly five defective X=5 P=0.05

Q: x f(x, y) 4 0.10 0.15 Y 3 0.20 0.30 5 0.10 0.15 a. Determine the cumulative distribution function…

A: Given f(x,y) x 2 4 Total y 1 0.10 0.15 0.25 3 0.20 0.30 0.50 5 0.10 0.15 0.25 Total…

Q: An electrical firm manufactures light bulbs that have a length of life that is appropriately…

A:

Q: Find the mean birth weight of these 35 babies

A: Here take  X = weight of baby at birth time = birth weight  f = number of babies  Use weighted mean…

Q: The Jones family was one of the first to come to the U.S. They had 7 children. Assuming that the…

A: It is given that n=7 and p=0.5.

Q: f(x, y) y 1 3 1 0.05 0.05 0.00 2 0.05 0.10 03 3 0.10 0.35 0.10

A: The table is as follows       x     f(x,y)   1 2 3 h(y)   1 0.05 0.05 0.1 0.2 y 3 0.05 0.1…

Q: (a) What is P(X = 1 and Y = 1)? P(X = 1 and Y = 1) = | (b) Compute P(X ≤ 1 and Y S 1). P(X ≤ 1 and…

A: HERE GIVEN , A service station has both self-service and full-service islands. On each island, there…

Q: a lot has 10% defective items. ten items are chosen randomly. the proability that exactly 2 of the…

A:

Q: 3. two-tailed test 4. left-tailed test 5. two-tailed test 201 6. one-tailed test, 7. two-tailed…

A: From the provided values  we have to find the critical values 3.Two-tailed testα=0.10n=29The degrees…

Q: As part of a study designed to compare hybrid and similarly equipped conventional vehicles, Consumer…

A: From the given information, Hybrid test file contains the variables: Class, type, MPG and model.…

Q: In a certain town, 30% of the people are Conservatives; 50% Socialists; and 20% Liberals. In this…

A:

Q: normal distribution has a mean of 17 and a standard deviation of 5. Use the 68-95-99.7 rule to find…

A: mean = 17 and  standard deviation = 5 Normal distribution Use empirical rule P(17&lt;x&lt;27) =?

Q: nean smaller for houses owned by teachers? The data how the results of a survey of 16 teachers who…

A: Given See the give data in excel screen shot