1) The mean number of births per day is........? 2)  The probability​ that, in a​ day, there are 15 births is...?

Q: A consignment of 180 articles is classified according to the size of the article as under. Find the…

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

Q: o researchers, the mean length of imprisonment for motor-vehicle-theft offenders in a nation is 15.1…

A:

Q: The time required to start a​ business, defined as the number of days needed to complete the…

A: Given Level of significance =0.05 Let μ1 be the mean time required to start a business in developed…

Q: According to the Experian Automotive, 35% of all car-owning households have three or more cars. In a…

A:

Q: Suppose population 1 consists of all students who picked up all the tests they completed prior…

A: Given, For sample 1 : sample size (n1) = 56 sample mean (x̄1) = 83 sample variance (s1) = 10.4  For…

Q: According to Financial Executive, disability causes 48% of all mortgage foreclosures. Given that 20…

A: Population mean in case of proportion is given by = np Where  n= sample size p=proportion

Q: Suppose the number of students in a class for the Business Statistics program at a University has a…

A: Given Mean=23 Standard deviations=4.3 n=15

Q: An investigator analyzed the leading digits from 781 checks issued by seven suspect companies. The…

A: By performing

Q: In sociology, a personal network is defined as the people with whom you make frequent contact.…

A: n=2824 , Xbar=14.6 Sigma=10.4

Q: a. What is the mean time to popping for this popcorn? ime

A: Introduction: Denote the time to popping (sec) as x, and the corresponding frequency as f.

Q: Compute the mean of 10, 50, 42, 55. Round to 2 decimal places as needed

A:

Q: A company has 13 employees with a salary of ​$21,000​, 11 employees with a salary of ​$23,400​, 17…

A: We are given with the Number of employees and their salary and we have to find the mean salary which…

Q: 1. Out of 100 numbers, 20 were 5's, 40 were 4's, 35 were 6's and 5 were 2's. Find the mean

A:

Q: Give the value of the best estimate.

A: For adults, sample size n1 = 2252, sample proportion = 0.72 For teens, sample size n2 = 800, sample…

Q: The mean monthly starting salary for 12 randomly sampled business school graduates is Php35400. If…

A: The mean or average of a sample is computed by dividing the sum of observations by the total number…

Q: Assume that 74% of randomly selected adults have a credit card. Assume that a group of five adults…

A: Binomial distribution:A random variable Y denoting the number of successes in n trials for…

Q: An investigator analyzed the leading digits from 771 checks issued by seven suspect companies. The…

A: The frequencies were 5, 10, 0, 61, 320, 322, 5, 17.

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: Suppose the researcher wants to investigate the mean number of hours worked per week by female in…

A: Given: The sample number of respondents is n=219. The sample mean number of hours worked per week by…

Q: An investigator analyzed the leading digits from 791 checks issued by seven suspect companies. The…

A:

Q: 16. Researchers want to compare students at private vs. public universities with respect to how much…

A: Here, public and private students were compared on mean hours worked per week.

Q: An investigator analyzed the leading digits from 784 checks issued by seven suspect companies. The…

A: There is only one categorical variable which is leading digit. It has 9 categories. We have to do…

Q: Compute the mean of 12, 62, 44, 57, 70, 42, 55. Round to 2 decimal places as needed

A:

Q: To estimate the mean height of female high school juniors, you take a random sample of 30 female…

A: Option B

Q: 8. For the date 4, 16, 20, 24, 38,57,59,60,60,74, compute the 10% trimmed mean.

A: Given data :  4,16,20,24,38,57,59,60,60,74 n = 10

Q: Suppose that an electrical engineering firm in Ottav tions. One thousand undergraduate students…

A: to get the job he needs to be in the top 7% therefore we need to find the value of the 93th…

Q: A researcher uses an anonymous survey to investigate the study habits of American college students.…

A: Population

Q: 1. A graduate student asks 500 female students whether they have experienced any sexual harass- ment…

A: a. From the given information, a student collected information for 50 nations regarding infant…

Q: CALCULATE THE LOWER 95% confidence inteveral when mean=27 , SE=1.23, n=14

A:

Q: A tech company wishes to study the number of production facilities that rely on new technologies,…

A: Solution: From the given information, the tech company wants to know if the number of 3D printers…

Q: A researcher with the Ministry of Transportation is commissioned to study the drive times to work…

A: SSE = ∑(ni-1)Si2

Q: There are three possible alternative hypotheses in a hypothesis test for a population mean. Identify…

A: There are three possible alternative hypotheses. Let µ be the population mean and c be the value to…

Q: Nine individuais are chosen at random from a population and their weights are found to be, in…

A:

Q: Suppose population 1 consists of all students who picked up all the tests they completed prior to…

A:

Q: In a company having 80 employees, 60 earn Rs. 3 per hour and 20 earn Rs. 2 per hour. Determine the…

A: Mean Mean is generally represented as total sum of all observations divided by number of…

Q: A psychiatrist believes that 80% of all people who visit doctors have problems of a psychosomatic…

A: Given: Number of people who visit doctors p = 80%=80100=0.80 Sample size, n = 25 Here, assuming the…

Q: 2. USA Today reported that the state with the longest mean life span is Hawaii, where the population…

A: The output is given as:

Q: In a small company there are 8 accountants , 14 engineers and 6 clerks . If the mean salary of the…

A: Solution: From the given information, there are 8 accountants, 14 engineers and 6 clerks in a…

Q: 6. The mean marks of 100 students were found to be 40. Later on it was discovered that a score of 53…

A:

Q: A researcher with the Ministry of Transportation is commissioned to study the drive times to work…

A: Given, average commute time of four cities Houstone, Charlotte, Tucson and Akron. Let, they are…

Q: An education official is interested in the percentage of the adult population over 20 years, in his…

A: Given, An education official is interested in the percentage of the adult population over 20 years,…

Q: Create a sample of ten numbers that have a mean of 3000. Demonstrate the concept of N-1 degrees of…

A: We have given that we have to create a sample of ten numbers that have a mean of 3000. So, let us…

Q: Assuming statistical testing was performed, what three items should be on every chart (in small…

A: A hypothesis test is carried out on the null hypothesis to determine if we have sufficient evidence…

Q: 3. In a study of the relatic a sample of 180 college of comparable age and Estimate the difference…

A: Estimation is an important concept in statistics.

Q: Suppose that from a random sample of size 24 sample mean and standard error of mean are found to be…

A: Given:

Q: Compute the mean of 18, 42, 19, 19, 36. Round to 2 decimal places as needed

A: Here sample size n = 5 We have to find mean of data.

Q: Find the population variance and standard deviation for th 10, 60, 50, 30, 40, 20 → ata set:

A:

Q: The U.S. Department of Agriculture reports that the mean cost of raising a child from birth to age 2…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Suppose population 1 consists of all students who picked up all the tests they completed prior to…

A: Given: For sample 1, n1=56x1¯=83s1=10.4 For sample 2, n2=51x2¯=67s2=24.2 Level of significance,…

Q: Calculate the test​ statistic, χ2 =?  ​(Round to three decimal places as​ needed.) Calculate the​…

A: The expected values are, Leading_Digit Actual_Frequency Benford's__Law Expected_Frequency 1 218…