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Find the variance of [6 ,7 ,10 ,11 ,12 ,13 ,16 ,18 ,25].
Round off your final answer into two decimal places.
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- Solve using R calculator. Show all work.The average fruit fly will lay 375 eggs into rotting fruit. A biologist wants to see if the average will be greater for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 379, 406, 378, 394, 369, 369, 402, 383, 367, 357, 401, 407, 357, 394, 367 What can be concluded at the the a = 0.05 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Но: 375 H1: 375 c. The test statistic (please = show your answer to decimal places.) d. The p-value (Please show your answer to 4 decimal places.)find the value of x if the numbers 7, x, 3, 9, 2 have a mean of 5.8
- The trade volume of a stock is the number of shares traded on a given day. The data in the first accompanying table, in millions (so that 6.16 represents 6,160,000 shares traded), represent the volume of a PepsiCo stock traded for a random sample of 38 trading days in 2018. A second random sample of 38 days in 2018 resulted in the data in the second accompanying table. Complete parts (a) through (d). EX Click here to view the data for sample 1. Click here to view the data for sample 2. Click here to view the table of critical t-values. .... (a) Use the data from sample 1 to compute a point estimate for the population mean number of shares traded per day in 2018. A point estimate for the population mean number of PepsiCo shares traded per day in 2018 is (Round to two decimal places as needed.) million. Sample 1 Volumes (millions 6.16 4.98 5.55 4.28 7.28 6.39 4.02 6.69 5.32 5.05 4.95 3.25 4.92 4.41 4.97 5.07 4.80 6.92 4.16 Sample 1 7.54 8.88 7.56 6.10 4.00 6.22 4.64 6.96 6.71 2.37 4.84…You want to know if male green darner dragonflies (Anax junius) are territorial so you collect data on how many dragonflies you find per square meter of shoreline around a 15 hectare pond. You collect data from 24 random square meter plots and count the number of male green darners in each plot. The data from each plot is below. Using the equation in the lab instructions, what is the Variance to Mean ratio? number of male green darners/square meter 8. 7 6. 6. 6. 7. 8 8. 81 8. 7 7 8. 6. Answer: 0.12A pet store has 8 cats. Here are their weights (in pounds). 8, 7, 10, 6, 7, 16, 8, 16 Find the mean weight of these cats. If necessary, round your answer to the nearest tenth. pounds × Ś ?
- Karen has an economics final next week. Find the mean of the following list of hours she studied for the final in the last few days. 1,5,7,4,1,4The total cost for a production process is $600 minus two times the number of units produced. The mean and variance of the number of produced are 200 and 20, respectivelySo, the mean and variance of the total cost are A.560,1000 B.80,200 C.180,400 D. 200,600find an example of when statistics were misused/skewed and state the reason why you think the statistics were reported that way.
- The average fruit fly will lay 407 eggs into rotting fruit. A biologist wants to see if the average will be fewer for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 421, 421, 388, 384, 404, 407, 395, 389, 394, 378, 419, 418 What can be concluded at the the αα = 0.10 level of significance level of significance? The null and alternative hypotheses would be: H0:H0: ? μ p Select an answer = ≠ > < H1:H1: ? p μ Select an answer ≠ = < > The test statistic ? z t Correct = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)The average fruit fly will lay 389 eggs into rotting fruit. A biologist wants to see if the average will be fewer for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 358, 388, 362, 382, 371, 385, 384, 393, 403, 389, 405 What can be concluded at the the a = 0.10 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho? Select an answer♥ H₁ PS Select an answer c. The test statistic ? (please show your answer to 3 decimalSolve the following and get the range and variance with the data 25,27,30,32,32,40,45,46,47,48
