During a typical week, between ________ and ________ patrons will visit the Safari Zone.

Q: A population has a mean = 73 and a standard deviation σ = 7. Find the mean and standard deviation of…

A: The mean of the sampling distribution of sample means is 73, or μx​=73. The standard deviation of…

Q: A study was done on body temperatures of men and women. The results are shown in the table. Assume…

A: Given information- 1- Denotes men body temperature. 2 – Denotes Women body temperature. We have to…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: option A is correct graph According to given question,  We have:-   z1= 0.25 and z2 = 1.75To find…

Q: The wage distribution of workers in certain factory is given below. Find the Coefficient of Mean…

A: Given wages in rupees number of workers 25 30 30 28 35 25 40 15 45 15 50 3

Q: ↑ A machine is bigs of candy. Due to slight irregulanties in the operation of the machine, not every…

A: The question is about empirical rule.Given :Population mean no. of pieces per bag (  ) =…

Q: The probability that a seed germinates is 55%. Plant 5 seeds. Let the random variable X be the…

A: The given information is:The number of trials is The success of probability

Q: boat capsized and sank in a lake. Based on an assumption of a mean weight of 142 lb, the boat was…

A:

Q: Assume that the two samples are independent simple random samples selected from normally distributed…

A: Let,μ1=Mean diastolic blood pressure of Womenμ2=Mean diastolic blood pressure of MenThe null and…

Q: K A study was done on proctored and nonproctored tests. The results are shown in the table. Assume…

A: The given values are: n1=31, x¯1=77.19, s1=11.09 n2=33, x¯2=87.66, s2=20.66

Q: 6 Intelligence quotas on two different tests are normally just distributed. Test he has a mean of…

A:

Q: If X1, X2, ., Xn is a xrandom sample from a N(H, o) population, write the distribution of (x1-µ)/o)?

A: We e have given that If X1 , X2, X3 ......Xn is a random sample from N(mu, sigma) population then…

Q: A hotel manager must distribute salary raises for next year.  She has decided that the mean raise is…

A: Given information Population Mean (µ) = $2000 Standard Deviation(σ) = $400

Q: Forty percent of cans contain apple juice. Let X be the number of apple-juice cans among five…

A: The number of cans n = 5 The probability that the cans contain apple juice p = 0.4 The probability…

Q: On average, a banana will last 7 days from the time it is purchased in the store to the time it is…

A: Note: As per our guidelines we are supposed to answer only 3 sub-parts of any question so I am…

Q: Describe the indicated sampling distribution model. this city for 5 years. Let y n Statistics from a…

A:

Q: Find the coefficient of vaxiance of freg. distribution Givem that its mean is 120, mode is 123 f…

A: Given : Mean = 120 Mode = 123 Karlpearson's coeff. of skewness = -3

Q: The average diameter of sand dollars on a certain island is 5.00 centimeters with a standard…

A: From the provided information,

Q: Suppose that the amount of time per day that American adults spend on their mobile devices is…

A: GivenMean(μ)=229standard deviation(σ)=57

Q: Soda comes in cans where the amount of carbonated refreshment contained in each can is normally…

A: given datanormal distributionμ=12.1  ouncesσ=0.12  ouncesS is amount of liquid∴S~Normal(12.1,0.12)

Q: A distribution of scores has no mode and the same median and mean values. This indicates that the…

A: It is given that, Mean=Median The mode of the data does not exists.   By definition of skewness, we…

Q: Four normal distributions are shown below. A 1. Which distribution is skewed? A B C D Neither one 2.…

A: 1. Neither one2. A3. B, C, D4. B5. DExplanation:#1Normal distribution is a continuous probability…

Q: As the size of a sample increases, the standard deviation of the distribution of sample means…

A: Here  Standard deviation of sample mean = σn

Q: wer below. A. Ho Hg+0 HA Ha =0 O B. Ho Ha s0 OC. Ho H =0 HA Ha #0 OD. Ho: Ha 20

A: The test is a one-tailed test. Dependent t-test

Q: Consider the distributions given by the bar graphs below Can you simply look at the graphs to decide…

A: The standard deviation is one of the dispersion method. It is used to measure the spread of data in…

Q: A certain brokerage house wants to estimate the mean daily return on a certain stock. A random…

A: We have given that,  The data set is,  0.46, -1.46, 1.91, 2.83, 1.45, -1.02, 0.32, 2.21, -0.42,…

Q: Subtract 30 from each item in the given sample, and compute the mean and standard deviation of the…

A: Answer:- Given sample is,  36, 44, 38, 35, 45, 36, 32 Now subtracting 30 from each item in the given…

Q: The months of July to October are considered rainy season in the Philippines as multiple weather…

A: E(X)=∑ixi p(xi)E(X)=0×0.12+(1×0.20)+(2×0.33)+(3×0.25)+(4×0.10)E(X)=0+0.20+0.66+0.75+0.4E(X)=2.01

Q: Let a, b, c, d and e be the observations with mean m and standard deviation s. The standard…

A: Stranded deviation of the ungrogrouped data

Q: A lawyer commutes daily from his home to his office. The average time for a one-way trip is 24…

A:

Q: The data that follow are the number of passengers on 35 different charter fishing boats. The sample…

A: It is given that the variable "X as the number of passengers on 35 different charter fishing boats"…

Q: Leila owns a pizza shop. She determines the number of pizza boxes that are sold per day. Number of…

A: According to the given information, we have Number of boxes (X) Probability P(X) 35 0.10 36…

Q: A researcher studying frogs is investigating the distance that a certain species of frog can jump.…

A:

Q: faculty. Find the Quartiles of the distribution, then 30 students have marks qual to 65 or lower?…

A: Quartile: It divides the given observations into four equal parts. The first quartile is represented…

Q: Consider a random variable (r.v.) that follows a Normal Distribution. Identify the statements that…

A:

Q: pls refer to the photo below.

A: We hwve to find null and alternative hypothesis.

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Given,mean(μ)=20.9standard deviation(σ)=5.3

Q: A certain brokerage house wants to estimate the mean daily return on a certain stock. A random…

A:

Q: he average number of cavities that thirty-year-old Americans have had in their lifetimes is 8.  Do…

A: Given information- Population mean, μ = 8 Sample size, n = 15 I am using excel to calculate sample…

Q: Calculate the variance and standard deviation of the following frequency distribution showing the…

A: Mid values of weight (class Interval) Xi: 74.5, 94.5, 114.5, 134.5, 154.5, 174.5, 194.5 fi: 9, 10,…