Use the following data set: 40, 33, 77, 23, 56, 23, 19, 29 (minutes). Assume the data is approximately bell shaped and a sample.
Q: Find the mean for the given data set, 24,11,32,16,18
A: Answer: From the given data set, 24,11,32,16,18 Sample size(n) = 5
Q: i) Test the claim of u> 2015 and use c=.90. Provide a sketch of the Critical Value. Evaluate the…
A: Sample data set = 40 , 33 , 77 , 12 , 23 , 56 , 23 , 19 , 29 ( inminutes)…
Q: 3. How was the data collected?
A: Data collection is an important part because the whole analysis will depend upon the collected data.…
Q: find the range, mean, variance, and standard deviation of the sample data set.
A:
Q: 5.8 6.6 7.3 8.2 10 5.5 6. 6.5 7.5 8 8.5 1. 9. 9.5 10.5 11 5.8 6.5 7.3 8.3 10 5.5 6. 6.5 7.5 8 8.5…
A: Median of the data point is 7.3 To check the correct box plot we will find the median of data…
Q: Find the mean for the given data, 14,25,17,19,34
A: Answer: From the given data, 14,25,17,19,34 Sample size(n) = 5
Q: Find the mean for the given data, 15,3,6,18,17
A: Answer: From the given data, 15,3,6,18,17 Sample size(n) = 5
Q: Use the following data set: 8, 3, 5, 2, 8, 4, 2, 6, 7, 5, 8 to answer questions The mid-range of the…
A: The mid-range of the data is = 8 + 22=102=5
Q: Consider the data set ( 11, 8, 8, 10, 8 , 10 , 7, 9 ) . Add 4 to each observation . What is the…
A: Given the data set ( 11, 8, 8, 10, 8 , 10 , 7, 9 ) . Adding 4 to each observation we get…
Q: 1. The following table shows the high temperatures over the last few days. Find the mean, median,…
A:
Q: Find the mid range of the dataset 6,87,34,2,54,22.
A: The given data set arranged in ascending order (sorted) is:-2,6,22,34,54,87.We need to find the mid…
Q: Consider the data scores; 7, 10, 14, 19, 25. Determine the IQR
A:
Q: draw the rough sketch of three types of charts representing statistical data.
A: The three common charts representing statistical data are bar graphs, histograms and pie charts.…
Q: Pick any 10 two-digit number of your choice and calculate the mean, variance, IQR, and range of any…
A: Let the sample be 28, 21, 22, 28, 34, 26, 57, 48, 35, 31 Sample arranged in ascending order: 21,…
Q: n the data set 2,8,10,85,12,7,5,3,10,3,9,4,9, find the 3rd decile
A: Total data values = 13 Data in ascending order corresponding to the position is written as follows:…
Q: onsider a data set: 1, 2, 5, 6, 7, 6. Find the range, variance, and standard deviation for this data…
A: the given data is x=1, 2, 5, 6, 7, 6
Q: Find the mean for the given data, 31,15,33,18,19
A: Answer: From the given data, 31,15,33,18,19 sample size(n) = 5
Q: 10 9 8 8 8 Determine the skewness if the data given is a sample. Use 4 decimal places 7 7 5 2 1
A: Given data is 10,9,8,8,8,7,7,5,2,1
Q: The following table gives the favorite color of each student in a large statistics class. Color…
A: The variable of the data set is "students"
Q: Find the mean for the given data set, 22,35,37,45 and 66
A: Answer: From the given data, 22,35,37,45 and 66 Sample size(n) = 5
Q: Workers at a private business was given a grade (A, B, C) based on their yearly performance. The…
A: H0 : the grades of workers are independent of department they belong. Ha : the grades of workers…
Q: In the following set of data: (6, 5, 4, 2, 7, 45, 100), what are the first, second, and third…
A: In the following set of data: (6, 5, 4, 2, 7, 45, 100), what are the first, second, and third…
Q: Cumula Class Relative Class Freque tive Midpoi Bounda frequen frequen су Limits ncy nt ries су 27.5…
A: Procedure to construct Histogram: EXCEL procedure: Go to EXCEL Go to Insert menu Select the…
Q: Find the mean for the given data set, 14,19,23,18 and 28
A: Answer: From the given data, Given data set is, 14,19,23,18,28 Sample size (n) = 5
Q: Use the following data set : 7 , 17, 30, 18, 24, 16, 3, 18,7 to answer questions The midrange of…
A: Given Data; Maximum value=30 Minimum value=3
Q: the following data set: 13, 8, 10, 7, 13, 9, 7, 11, 12, 10, 13 to answer questions The data is said…
A: We have given that the following set of data: 13, 8, 10, 7, 13, 9, 7, 11, 12, 10, 13. Multimodal:…
Q: Find the mean for the given data set, 25,36,59,47,46
A: Answer: Given data set is, 25,36,59,47,46 Sample size (n) = 5
Q: Draw a histogram to illustrate the data.
A: It is been asked to construct a histogram using given frequency table.
Q: ind the IQR ( Interquartile range) of the following data values: 35, 23, 12, 45, 31, 57, 61, 55, 36,…
A: The provided data set is: 35, 23, 12, 45, 31, 57, 61, 55, 36, 17
Q: Find the 5 number summary of the following set of data: 11, 8, 12, 4, 7, 10, 3, 15, 8, 8, 7
A: In general, five number summary represents minimum, first quartile, median, third quartile and…
Q: etermine the skewness if the data given is a sample.
A: The given table is Lower Class Limit Upper Class limit Frequency 0 2 2 3 5 5 6 8 3 9 11…
Q: Use the data set {13, 16, 17, 18, 19, 19, 20, 25, 27, 30, 35, 42} The data represent the ages of a…
A:
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- Unfortunately, arsenic occurs naturally in some ground water.t A mean arsenic level of u = 8.0 parts per billion (ppb) is considered safe for agricultural use. A well in Texas is used to water cotton crops. This well is tested on a regular basis for arsenic. A random sample of 36 tests gave a sample mean of x = 7.1 ppb arsenic, with s = 2.2 ppb. Does this information indicate that the mean level of arsenic in this well is less than 8 ppb? Use a = 0.01. A USE SALT (a) What is the level of significance? State the null and alternate hypotheses. O Ho: H= 8 ppb; H,: H > 8 ppb O Ho: H 8 ppb; H: H = 8 ppb (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The standard normal, since the sample size is large and a is unknown. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and a is known. O The Student's t, since the sample size is large and a is unknown. What is…Unfortunately, arsenic occurs naturally in some ground water.t A mean arsenic level of u = 8.0 parts per billion (ppb) is considered safe for agricultural use. A well in Texas is used to water cotton crops. This well is tested on a regular basis for arsenic. A random sample of 36 tests gave a sample mean of x = 7.1 ppb arsenic, with s = 2.2 ppb. Does this information indicate that the mean level of arsenic in this well is less than 8 ppb? Use a = 0.01. A USE SALT (a) What is the level of significance? State the null and alternate hypotheses. O Họ: u = 8 ppb; H,: u > 8 ppb O Ho: H 8 ppb; H,: u = 8 ppb (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. The standard normal, since the sample size is large and a is unknown. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and a is known. The Student's t, since the sample size is large and a is unknown. What is the…Unfortunately, arsenic occurs naturally in some ground water.t A mean arsenic level of u = 8.0 parts per billion (ppb) is considered safe for agricultural use. A well in Texas is used to water cotton crops. This well is tested on a regular basis for arsenic. A random sample of 36 tests gave a sample mean of x = 6.7 ppb arsenic, with s = 3.0 ppb. Does this information indicate that the mean level of arsenic in this well is less than 8 ppb? Use a = 0.01. n USE SALT (a) What is the level of significance? State the null and alternate hypotheses. O Ho: H = 8 ppb; H,: u > 8 ppb O Ho: H = 8 ppb; H,: H + 8 ppb O Ho: H 8 ppb; H,: u = 8 ppb O Ho: H = 8 ppb; H,: µ 0.100 O 0.050 < P-value < 0.100 O 0.010 < P-value < 0.050 O 0.005 < P-value < 0.010 P-value < 0.005 Sketch the sampling distribution and show the area corresponding to the P-value. MacBook Pro esc
- Pyramid Lake is on the Palute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a tells you that the average length of trout caught in Pyramid Lake Is mu = 19 Inches. Howevera survey reported that of a random sample of 46 fish caught, the mean length was overline x =18.6 lnch , with estimated standard s = 2.7 inches. these data Indicate that the average length of a trout caught in Pyramid Lake less than mu = 19 inches? Use a=0.05 Please answer parts A,B, & CPyramid Lake is on the Palute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a tells you that the average length of trout caught in Pyramid Lake Is mu = 19 Inches. Howevera survey reported that of a random sample of 46 fish caught, the mean length was overline x =18.6 lnch , with estimated standard s = 2.7 inches. these data Indicate that the average length of a trout caught in Pyramid Lake less than mu = 19 inches? Use a=0.05 Please answer ONLY parts D & EPlease explain the answer by showing work.
- An important indicator of lung function is forced expiratory volume (FEV), which is the volume of air that a person can expire in one second. Dr. Hernandez plans to measure FEV in a random sample of n individuals from a certain population, and to use the sample mean to estimate of the population mean. The population distribution of FEV is assumed to be normal with mean mu-3000 ml and SD sigma=400 ml. Which of the following statements is correct regarding the sampling distribution of the sample mean? Ⓒa. It is the theoretical distribution of a sample statistic (in this case the sample mean). b. It is the theoretical distribution of all individuals in the population. Oc It is the observed distribution of all individuals in the sample. QUESTION 2 Suppose sample size is n-64. What is the mean of the sampling distribution of y? Ⓒa.50 b.375 c400 Od 30002. A researcher would like to know if IQ scores are related to age. Using 10 high school students, he found out that computed r is 0.58. At 0.05 level of significance, can he conclude that the relationship exists in the population?Suppose u, and u, are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. The data follows: m = 9, x = 115.5, s, = 5.04, n = 9, y = 129.9, and s, = 5.37. Calculate a 95% CI for the difference between true average stopping distances for cars equipped with system 1 and cars equipped with system 2. (Round your answers to two decimal places.) n USE SALT |-19.56 Does the interval suggest that precise information about the value of this difference is available? O Because the interval is so narrow, it appears that precise information is not available. O Because the interval is so wide, it appears that precise information is not available. O Because the interval is so wide, it appears that precise information is available. O Because the interval is so narrow, it appears that precise information is available.
- After testing the product, quality control team found that 22% of them showed some defect. How many products must be tested to be 83% confident that the error in estimating the true value of p is less than 7%? Assume the distribution is normal. Solution: 1. Critical Value %3D Number of products to be tested =Is the proportion of wildfires caused by humans in the south different from the proportion of wildfires caused by humans in the west? 349 of the 581 randomly selected wildfires looked at in the south were caused by humans while 368 of the 561 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the = 0.01 level of significance? The test statistic ? z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)B6. Pinan Insurance Company wants to study the relationship between the amount of fire damage and the distance between the burning house and the nearest fire station. This information will be used in setting rates for insurance coverage. For a sample of 30 claims for the last year, the director of the actuarial department determined the distance from the fire station (x) and the amount of fire damage, in thousands of dollars (y). The MegaStat output is reported below. ANOVA table Source Regression Residual Total Regression output Variables Intercept Distance-X Answer the following questions. SS 1,864.5782 1,344.4934 3,209.07 Coefficients 12.3601 4.7956 df 1 28 29 MS 1,864.5782 48.0176 Std. Error 3.2915 0.7696 c) Determine and interpret the coefficient of determination. F 38.83 t(df=28) 3.755 6.231 d) Determine the correlation coefficient. Interpret its value. How did you determine the sign of the correlation coefficient?