Find average in classified data set (k=4) SHaflandırimıs verilesde ortelemay bulunua k 37 40 41 43 24 37 37 17 21 O A) 29,3 O B) 32,0 OC) 31,2 O D) 33,4 O E) 33,7 23
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- An entomologist believes that the median body length of lady beetles is 15.0 millimeters. A random sample of 16 lady beetles were measured and recorded as in the table below. 14.5 15.2 15.2 15.4 15.4 15.0 14.9 14.6 15.0 15.1 15.1 14.8 15.6 15.1 15.4 15.5 At α = 0.05, test the claim that the lady beetles’ body length is different from theestimated length.MSA agrees to purchase the products of an Enterprise if the produced items do not have variance of 0.5mm2in their length.To be sure of the Specification, msa selects a sample of 18 items from his lot. Thelength of each item was measured as follows: 18.63, 18.43, 18.34, 18.58, 18.64, 18.37, 18.43, 18.63, 18.22,18.57, 18.34, 18.12, 18.46, 18.33, 18.32, 18.61, 18.10, 18.57. On the basis of the sample data, should msapurchase the lot at 5 percent level of significanceThe Department of Statistics Malaysia (DOSM) conducted another study on the monthly gross income (in RM) in Malaysia for 2017. Another four states are selected and the data obtained are shown in Table 2. The Boxplot of the data is given in Figure 1. Based on Figure 1,(i) Determine the shape of the distribution of monthly gross income for Sarawak and Wilayah Persekutuan Kuala Lumpur (W.P.KL). (ii) Given that Q1 ≈ 4900 and Q3 ≈ 9900 , prove that there exist outlier for Wilayah PersekutuanKuala Lumpur (W.P.KL) as illustrated in the Figure 1. Show your calculations.
- A deck has "b" black cards and "y" yellow cards. Given that cards are drawn at a random fashion without replacement. Find the average where after drawing a black card it is immediately followed by a yellow cardThe accounting department of Plank Inc. has been asked to estimate the average salaries of its senior executives worldwide in order to calculate a productivity bonus increase. For this, a random sample of 5 of its executives was taken, according to these data determine the point estimate of the mean of its executives' salaries.Salaries in thousands of US$ are: 2,298; 2,470; 2,407; 2,548; 2,099Select one:a. x ̅ =2,364.4b. x ̅ =2.365c. x ̅ =3,640.4d. x ̅ =23.700e. x ̅ =29.554,5the wade tract in thomas county, georgia, is an old-growth forest of longleaf pine trees (pinus palustris) that has survived in a relatively undisturbed state since before the settlement of the area by europeans. foresters who study these trees are interested in how the trees are distributed in the forest. one way to formulate hypotheses about whether or not the trees are randomly distributed in the tract is to examine the average location in the north-side direction. the values range from 0 to 200, so if the trees are uniformly distributed in this direction, any difference from the middle value (100) should be due to chance variation. the sample mean for the 485 trees in the tract is 99.74. a theoretical calculation based on the assumption that the trees are uniformly distributed gives a standard deviation of 58. carefully state the null and alternative hypotheses in terms of this variable. note that this requires that you translate the research question about the random distribution…
- When determining whether grounding accidents and hull failures result in different spillage (is there a difference between spills caused by grounding or hull failures) would I use a two tail t test to decide this?A simple random sample of 20 new automobile models yielded the data shown to the right on fuel tank capacity, in gallons. 21.5 15.4 21.7 16.3 20.7 16.1 19.4 19.9 15.8 19.1 20.2 15.3 22.8 15.8 21.9 16.6 13.9 18.5 12.4 18.8 a. Find a point estimate for the mean fuel tank capacity for all new automobile models. Note: ∑xi=362.1 A point estimate is 18.105 gallons. (Type an integer or a decimal. Do not round.) b. Determine a 95% confidence interval for the mean fuel tank capacity of all new automobile models. Assume σ=3.60 gallons. The 95% confidence interval is from ________ gallons to ________ gallons. (Do not round until the final answer. Then round to two decimal places as needed.)Thomas wants to compare the mean concentration of carbon monoxide (CO) on residential versus commercial streets, since these differ in terms of car traffic. In each of three neighborhoods of Montréal (named A, B, and C below), he randomly chooses four locations for each type of street, for a total of 24 observations (2 street types x 3 neighborhoods x 4 locations). At each location, he measures CO concentration in the air over a period of 10 hours (8:00 AM-6:00 PM), and obtains the following data (in ppm/h). 10-a) Draw a graph that gives insight into the possible presence of an interaction between the two classification factors. Do you suspect the presence of an interaction? Explain why. IMG 4569 10-b)Test whether or not the difference between residential and commercial streets in mean atmospheric CO concentration is the same among the three neighborhoods, and whether or not CO concentration in the air is the same, on average, for the two types of streets. Note that Neighborhood is…
- Thomas wants to compare the mean concentration of carbon monoxide (CO) on residential versus commercial streets, since these differ in terms of car traffic. In each of three neighborhoods of Montréal (named A, B, and C below), he randomly chooses four locations for each type of street, for a total of 24 observations (2 street types x 3 neighborhoods x 4 locations). At each location, he measures CO concentration in the air over a period of 10 hours (8:00 AM-6:00 PM), and obtains the following data (in ppm/h). Question: Test whether or not the difference between residential and commercial streets in mean atmospheric CO concentration is the same among the three neighborhoods, and whether or not CO concentration in the air is the same, on average, for the two types of streets. Note that Neighborhood is considered a random block factor in the ANOVA. Use significant level= 0.05.Use the rule method to describe the sample space S consisting of all points in the first quadrant inside a circle of radius 3 with center at the origin.Data on pull-off force (pounds) for connectors used in an automobile engine application are asfollows:79.3, 75.1, 78.2, 74.1, 73.9, 75.0, 77.6, 77.3, 73.8, 74.6, 75.5, 74.0, 74.7, 75.9, 72.9, 73.8, 74.2, 78.1,75.4, 76.3, 75.3, 76.2, 74.9, 78.0, 75.1, 76.8.a) Check the assumption that pull-off force is normally distributed. Include a graphical display in youranswer.b) Calculate a point estimate of the mean pull-off force of all connectors in the population. State whichestimator you used and why.c) Calculate a point estimate of the pull-off force value that separates the weakest 50% of the connectorsin the population from the strongest 50%.