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Q: Twenty-three college graduates are applying for internships at a Wall Street financial institution. ...

A: From the information, Total number of graduates = 23 Number of people graduates from an Ivy League g...

Q: Holmes Institute conducted a survey about International Students in Melbourne. The survey results ar...

A: Given: Applied to more than 1 university Age group yes no 23 and under 207 201 24-26 29...

Q: Can someone please hand write it? I'm supposed to hand write out the problem, show my work, thank yo...

A: X Y XY X2 Y2 8 81 648 64 6561 8 80 640 64 6400 6 75 450 36 5625 5 65 325 25 4225 7 91 637 ...

Q: Airport Scales. Airport baggage scales are used to determine if bags are overweight requiring additi...

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you re...

Q: Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a)...

A: From the histogram, the distribution is highly skewed in the right side. We can't tell about its di...

Q: I got this wrong and I would love help on why and what the correct answer is, thank you!

A: Refer Standard normal table/Z-table, Lookup for z-score corresponding to area 0.98 to the left of th...

Q: In a recent year, a hospital had 4226 births. Find the mean number of births per day, then use that ...

A: Given that, The hospital had 4226 births in a year The mean number of births per day is, Let X deno...

Q: It is presentation day in class and your instructor is drawing names from a hat to determine the ord...

A: In the procedure of sampling without replacement, to obtain the probability of some event you can no...

Q: Find the probability that an Emotional Health Index Score is 82.7. 69. Find the probability that an ...

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

Q: How would I go about calcluating this?

A: According to the empirical rule,

Q: According to the 1-2-3 rule, what percentage of area in a normal distribution is within one standard...

A: Normal distribution is symmetric distribution about mean and bell shaped. Spread of the distribution...

Q: "A lot of 200 nylon connectors contains 100 that are defective. Two are selected, at random, without...

A: The number of defectives in a lot of 200 nylon connectors is 100. Thus, the number of non-defectives...

Q: randomly selected students were asked how many siblings were in their family. Let X represent the mb...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case yo...

Q: Interpret the following three sets of data using scatter chart and regression analysis, using slope ...

A: (C20)x: annual number of training hour and (C21)y: time to serve customers in minutes The data is gi...

Q: Use a smoothing constant ALPHA = 0.8 and calculate the forecasted value and smoothing value

A: The data set of the Shiller Real Home Price Index for the years 1934-1944 is given below. Year R...

Q: (a) The probability that the sample contains only white balls is C(8,4) C(18,4) C(18,4) (i) C(18,8) ...

A: It is given that the urn contains 10 green balls and 8 white balls. So, total no. of balls= 10 + 8 ...

Q: A group fitness gym classifies its fitness class attendees by class type and member status. The mark...

A: There are total 2,201 attendees.

Q: Explain it correctly all parts

A: Click to see the answer

Q: 9. The psychology department is gradually changing its curriculum by increasing the number of online...

A: a. Let μ denotes the population mean of new online course. The claim of the test is the new online c...

Q: A group of people studied the relationship of smoking habits and hypertension. The data below have g...

A: Let M be the event that the person is a moderate smoker and the event NH be the person is experienci...

Q: Here is a sample data set that appears to be nearly normal. Put this set into a histogram with the l...

A: IN EXCEL Add-ins>MegaStat>Frequency Distributions>Quantitative Tick on Histogram and clic...

Q: If X and Y are mutually exclusive events, then if X occurs _______. Y must also occur ...

A: X and Y are mutually exclusive events. So, if X and Y are mutually exclusive events, then they canno...

Q: IQ and lead exposure Data set 5 in Appendix B list full iq scores for random sample of subjects with...

A: Given that, Sample size of subjects with low lead level n1=78 Sample size of subjects with high lea...

Q: How do I input the following into Excel? You plan to conduct a survey to find what proportion of the...

A: The confidence level is 95%. The margin of error is 0.02 Since the proportion is not known, p= 5/50 ...

Q: Can you answer questions two and three

A: Correlation between two variables measure the strength and direction between two variables. It measu...

Q: If a procedure meets all of the conditions of a binomial distribution except the number of trials is...

A: Let X denote the random variable that follows a geometric distribution with probability p=0.08 In a ...

Q: Suppose a sitcom is filmed on set between zero and five days per week. The following table shows the...

A: 0 0.14844 -2.43056 5.9076219136 0.877 1 0.15625 -1.43056 2.0465019136 0.320 2 0.23756 -0.43056 0...

Q: i believe its the explanation What is the sum of all frequencies in a frequency distribution?

A: the sum of all frequencies in a frequency distribution is a cumulative distribution function .

Q: Suppose the test scores in a class are normally distributed with a mean of 70 and a standard deviati...

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean ...

Q: Assume that when adults with smartphones are randomly selected, 62% use them in meetings or classes....

A: The formula for binomial distribution is nxpx(1-p)n-x Given information is: p=0.62 n=5 x=3

Q: A consumer organization wants to develop a regression model to predict gasoline mileage (as measured...

A: Software procedure for regression in Excel. Enter the given data in EXCEL sheet as MGP in column A,...

Q: When ten basketball players are about to have a free-throw competition, they often draw names out of...

A: When 10 basket ball players are about to have a free throw competition, they often draw names out of...

Q: Which of the following is not one of the statistical assumptions behind linear regression? ...

A: The assumptions of regression is given below: There is a linear relationship between dependent and ...

Q: In a survey of 1390 people, 1034 people said they voted in a recent presidential election. Voting re...

A: (a) The probability that among 1390 randomly selected voters, at least 1034 actually did vote is 0....

Q: Janus SeagulI had a car accident and was out of work for a year. Janus believes that the accident wa...

A: Given: Janus Seagull had a car accident and was out of work for a year. Janus believes that the acci...

Q: A variable xx is normally distributed with mean 19 and standard deviation 8.Round your answers to th...

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to ou...

Q: All 5 members of a family work. Their hourly wages (in dollars) are the following. 16, 35...

A: Population Standard deviation: If the standard deviation is calculated for population then it is c...

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both...

A: Given information- We have given two samples- For sample 1 (for children)- Sample size, n1 = 11 Samp...

Q: Assume a population of 1, 2, and 12. Assume that samples of size n=2 are randomly selected with repl...

A: The given population is 1, 2, and 12 and the nine samples are as follows:

Q: Sametronics, Inc., manufactures electronic component A at a cost of $3 and B ata cost of $1 per unit...

A: Given Information : Sametronics, Inc., manufactures electronic component A at a cost of $3 and B at...

Q: Assume that Z is a number randomly chosen from a standard normal distribution. Use the standard norm...

A: Click to see the answer

Q: For a population with a mean of 40 and a standard deviation of 8 find the z score corresponding to ...

A: a. The population mean is 40 and a standard deviation is 8. The z-score of x=34 for a sample of n=1 ...

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those sc...

A: Click to see the answer

Q: I used the empirical table, not sure what went wrong.

A: Given: According to the empirical rule, Therfore,