Construct a sample (with at least two different values in the set) of 3 measurements whose mean is 16. If this is not possible, indicate "Cannot create sample"
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Construct a sample (with at least two different values in the set) of 3 measurements whose mean is 16. If this is not possible, indicate "Cannot create sample"
We know that the sample mean is given by;
where;
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- if the 90% Ci for the population mean is ( -2.58, 7.54) what is the sample mean О a. 2.48 Оb. 10.12 O c. 5.06 O d. can't be found2. Get a tip measure and identify 20 of your classmates in random selections and measure their height in centimeters. Tabulate the measured height and obtain the following: (OBE Approach) (i) Mean (ii) Median (iii) Mode3. Construct all random samples consisting two observations from the given data. You are asked to guess the average weight of the six watermelons by taking a random sample without replacement fromı the population. Watermelon B. C D. E Weight (in pounds) 19 14 15 9. 10 17
- Given the sample −4, 14, 2, 12, −7, 19, add one more sample value that will neither change the median nor the range. Round to two decimal places as necessary. If this is not possible, indicate "Cannot create sample".Consider a sample with six observations of 24, 25, 12, 6, 23, and 12. Compute the z-score for each observation.In each part, give the value of the standardized statistic (z-score) for the sample mean. 100, σ = 8, n = 4 (a) x = 88, μ = Z = (b) x = 88, μ = 100, σ = 8, n = 64 Z = (c) x = 10.63, μ = 10.0, σ = 7, n = 10,000 z =
- An athletic shoemaker wants to test if their new running shoe specially made for sprinting is better than the competition. To do this, they recruit 35 NCAA sprinters and time their 100-meter dash wearing the company's shoe and then time their 100-meter dash again wearing the competitor’s shoe. The difference of these times is then calculated asTimecompany.shoe−Timecompetitor.shoe. The sample mean difference in times is 0.53 seconds and the sample standard deviation is 1.1. Conduct a hypothesis test at theα=0.1 level. (a) Set up the null and alternative hypothesis (using mathematical notation/numbers AND interpret them in the context of the problem) (b) Calculate the test statistic (c) Calculate the critical value. (d) Draw a picture of the distribution of the test statistic underH0. Label and provide values for the critical value and the test statistic, and shade the critical region. (e) Make and justify a statistical decision at theα= 0.15 level and state your conclusions in the…Construct a sample (with at least two differentvalues in the set) of 66 measurements whose median is smaller than the smallest measurement in the sample. If this is not possible, indicate "Cannot create sample".Let’s examine the mean of the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 by drawing samples from these values, calculating the mean of each sample, and then considering the sampling distribution of the mean. To do this, suppose you perform an experiment in which you roll a ten-sided die two times (or equivalently, roll two ten-sided dice one time) and calculate the mean of your sample. Remember that your population is the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. The true mean (μ) of the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 is , and the true standard deviation (σ) is . The number of possible different samples (each of size n = 2) is the number of possibilities on the first roll (10) times the number of possibilities on the second roll (also 10), or 10(10) = 100. If you collected all of these possible samples, the mean of your sampling distribution of means (μMM) would equal , and the standard deviation of your sampling distribution of means (that is, the…
- Consider a sample with data values of 10, 45, 60, 85, 90. Compute the IQR. Select one: О а. 90 ОБ. 10 О с. 60 O d. 45 O e. 85 O f. 40Construct a sample (with at least two different values in the set) of 5 measurements whose mean is equal to the median. If this is not possible, indicate "Cannot create sample".Consider a sample with data values of 26, 24, 22, 18, 32, 34, 29, and 24. Compute the percentiles (to 2 decimal, if decimals are necessary). 20th 25th 65th 75th