The following are the number of cars passing a point on a highway per minute.   10 12 11 19 21 21 23 22 24 25 23 21 28 26 62 Is there any outlier in the data above? Which data?

Q: Suppose the age distribution in a city is as follows. Under 18 20% 18–25 18% 26–50 32% 51–65 8%…

A: Given that, Sample size, n= 300 So we can find the number of people for every class Interval by…

Q: It is known that 40% of all customers at a service station pay with a credit card. If a random…

A: Given  p=0.40, x=75, n=200

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

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

Q: Suppose the age distribution in a city is as follows. Under 18 26% 18–25 16% 26–50 32% 51–65 8%…

A: We have to find no. Of people from each sample required.

Q: The test scores of 5 students are under consideration. The following is the dotplot for the sampling…

A: Here,   μ =78  &  z = 5μ-z= 78-5=73μ+z=78+5=83 No. of possible outcomes ( dots from 73 to 83) =…

Q: Identify the type of sampling technique used by the researcher in each of the following situations.…

A: We have given the following statement about the sampling  technique.

Q: Consider the following random sample of data: 12, 26, 28, 16, 21, 5, 8, 1, 107, 19 a) What is the…

A:

Q: Consider the following random sample of data: 12, 24, 28, 14, 23, 7, 9, 3, 106, 18 a) What is the…

A:

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A:

Q: (c) The following table shows the values, in thousands of dollars, of  40 randomly selected houses…

A: i) From the data, Maximum value is 1084. Minimum value is 34. Midrange for the data is as follows:…

Q: b. Alpha is 10%, the sample size is 45 and sigma is known.

A:

Q: Which of the following methods helps reduce sampling bias? O a. Take a random sample from a…

A: It is needed to find the method that reduces sampling bias.

Q: Consider the following random sample of data: 11, 26, 28, 14, 22, 6, 8, 3, 104, 20 a) What is the…

A:

Q: Suppose the average grade point average (GPA) for the undergraduate student population on our campus…

A: The population average grade point is µ = 3.10.

Q: Find the measure of dispersion of a random sample lengths of songs in a playlist. 3:42  3:40  3:50…

A:

Q: A. Data record for t-shirt owners. 4 8. 6. 10 11 15 16 18 19 12 13 14 18 17 Determine the following:…

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

Q: Consider the following random sample of data: 1,9, 8, -1, -1, 3 -1,0, 3, 89 a) What is the mean of…

A:

Q: 2.Using stratified random sampling, if 200 will be taken as sample, how many representatives from…

A: 2)  Number of representatives to be selected for sample = 200 Total population…

Q: How old are college students? The national age distribution for college students is shown below.…

A: To test whether the sample data fits a specific distribution the chi-square goodness of fit test is…

Q: A random sample of size2 was taken from the data set: \(45, 40, 55, 62, 39/), what is the mean of…

A: Mean of sample mean is always equal to population mean.

Q: Consider the following random sample of data: 13, 24, 29, 14, 23, 5, 10, 2, 107, 20 a) What is the…

A:

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: applying one way ANOVA on above data:   Mean n Std. Dev Variances budgets 257.4 5 11.7388…

Q: It is known that 40% of all customers at a service station pay with a credit card. If a random…

A: Given : It is known that 40% of all customers at a service station pay with a credit card.

Q: Consider the following random sample of data: -8, -1, 1, -9, 4, 0, -7, 4, 0, 82 a) What is the mean…

A: (a) Here, = Sum of the data values. The sum of all the data values is 66. Now, Hence, Mean = 6.6

Q: 13. FILE The following sample of observations was randomly selected. 4 5 3 10 4 7 49 m 5

A: Given data, X Y X*Y X*X 4 4 16 16 5 6 30 25 3 5 15 9 6 7 42 36 10 7 70 100

Q: Two researchs adopted different sampling techniques while investistigating the same group of student…

A: H0: The sampling techniques adopted by the two researchers are independent. H1: The sampling…

Q: Suppose the age distribution in a city is as follows. Under 18 22% 18–25 18% 26–50 34% 51–65 8%…

A: The sample size is 250.

Q: Suppose the age distribution in a city is as follows. Under 18 26% 18–25 16% 26–50 34% 51–65 10%…

A:

Q: Suppose the age distribution in a city is as follows. Under 18 24% 18–25 18% 26–50 34% 51–65 10%…

A: n= 350 We can create a table for the given data.

Q: Consider the following random sample of data:   12, 24, 30, 17, 23, 7, 9, 2, 108, 18     a)…

A:

Q: Poor Middle Class Well-to-do Total Investigation 30 10 200 A 160 120 40 300 B 140 150 50 500 Total…

A:

Q: 4b. Using the same information from 4a, what is the standard error of the sampling distribution?…

A:

Q: calculate the mean and ss for each of the following sample numbers 1,3,4,0

A:

Q: Consider the following random sample of data:   12, 27, 29, 14, 23, 4, 10, 1, 109, 20     a)…

A: We know that.  Observations in the ascending order are :1,4,10,12,14,20,23,27,29,109

Q: Which of the following represents a sampling distribution and why?   Heights of students at a…

A: Sampling distribution is basically a probability distribution and the statistic obtained from all…

Q: ***Part a) has already been answered, but I need help for parts b) and c) please*** Assume that the…

A: Sampling Error: (when there is no confidence interval given) It is the difference between the sample…

Q: A particular brand or dishwasner soap is sold in oz, and 70 oz. Twenty percent or purchasers select…

A: Given Information: The possible values of x are: 25, 30, 70 with probabilities 0.20, 0.50, 0.30…

Q: Consider the following random sample of data:   -9, 3, -7, 1, 0, 0, 8, -8, 6, 87     a) What is…

A: The sample data: -9, 3, -7, 1, 0, 0, 8, -8, 6, 87

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the​ range,…

A: Note: the sample size mentioned in the question is 11. But the given observation is greater than 11.…

Q: 12, 25, 29, 15, 22, 7, 8, 1, 110, 20     a)  What is the median of the sample data?   Round…

A: We have to find the median of the given data.

Q: Consider the following random sample of data: -7, -4, -3, 8, -7, -3, 7, -9, -2, 85 a) What is the…

A:

Q: Which of the following sampling methods was used in the study described below?  A researcher wants…

A: Sampling is being used

Q: Consider the following random sample of data: 5, 10, 2, 4, 4, -4, -7, -5, 8, 84 a) What is the mean…

A:

Q: 1. A department store has determined that 20% of its customers are very satisfied. What is the…

A: Given data: Sample proportion = 20% To find: What is the minimum sample size required to approximate…

Q: Consider the following random sample of data: 10, -10, 9, 7, 8, 3, -5, -8, -4, 86 a) What is the…

A: Given that - random sample of data 10, -10, 9, 7, 8, 3, -5, -8, -4, 86.

Q: Consider the following random sample of data: 9, -9, 0, 5, 10, 7, 1, -6, -1, 82 a) What is the mean…

A: Data : 9,-9,0,5,10,7,1,-6,-1,82 Number of data : 10 Outliers are extreme values present in the data…

Q: The population below is provided. 6. 14 14 10 15 13 6. 9. 14 15 15 13 11 6. 7 10 11 15 6 11 9. 8 14…

A: The given distribution follows t distribution with (n-1) d.f.  For ease of calculations we construct…

Q: Suppose that in a truckload of potatoes, 6% of the potatoes are bruised or damaged in some way. What…

A: Given: p=0.06 n=200 The mean of sampling distribution of the sample proportion is approximately…

Q: From the population of the 300 student scores above a random sample of size n = 8 is selected. The…

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

Q: Consider the following random sample of data: -8, 6, -10, 6, -5, 5, -7, -9, -2, 86 a) What is the…

A: Solve for the mean