Consider the population : {1, 2, 3, 4, 5}, and suppose this population has theuniform distribution.Suppose we construct a random sample of size 100 coming from this population.Then(Hint: expected value and variance of uniform distribution + CLT)The distribution of the sample mean is approximately normal with mean 3 and variance0.02.The distribution of the sample mean is approximately normal with mean 3 and variance0.002.The distribution of the sample mean is approximately normal with mean 4 and variance0.02.O The distribution of the sample mean is approximately normal with mean 3 and variance2.O None of the choices.

Answered: Image /qna-images/answer/0efeb5c2-f4ff-4cf6-a684-ac9083bfafa6.jpg

Answered: Consider the population : {1, 2, 3, 4,…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Chapter Exerclse 6-84 (Algo) The Rejuvo Corp. manufactures granite countertop cleaner and polish. Quarterly sales Qis a random variable with a mean of 24,320 bottles and a standard deviation of 3,130 bottles. Variable cost is $13 per unit, and fixed cost is $220,270. (a) Find the mean and standard deviation of Rejuvo's total cost. Mean Standard deviation (b-1) If all bottles are sold, what would the selling price have to be to break even, on average? (Round your answer to 2 declmal places.) Selling price (b-2) If all bottles are sold, what would the selling price have to be to make a profit of $25,695? (Round your answer to 2 declmel places.) Selling price < Prev 2
Let x be a random variable that represents hemoglobin count (HC) in grams per 100 milliliters of whole blood. Then x has a distribution that is approximately normal, with population mean of about 14 for healthy adult women. Suppose that a female patient has taken 10 laboratory blood tests during the past year. The HC data sent to the patient's doctor are as follows. 14 18 15 19 13 11 15 18 15 12 (i) Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.) X = S = (ii) Does this information indicate that the population average HC for this patient is higher than 14? Use a = 0.01. (a) What is the level of significance? State the null and alternate hypotheses. О Но: и 3D 14;B Hі: и 14; Hі: и %3D 14 Но: и 14 О Но: и 3D 14;B Hi: и # 14 (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The standard normal, since we assume that x has a normal distribution and o is…
To assess whether two data sets are derived from the same distribution—which need not be known, you can apply the test for _____________ that uses the chi-square distribution. The ________ hypothesis for this test states that the populations of the two data sets come from the same distribution. The test compares the observed values against the expected values if the two populations followed the same distribution. The test is right-tailed. Each observation or cell category must have an expected value of at least ______. Group of answer choices independence, null, four homogeneity, null, five goodness of fit, null, five variance test, alternate, four
please state the approximate distribution of the sample mean
None
A company wants to determine whether its consumer product ratings (0 - 10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a = 0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (1). Consumer Rating (last year) Rating (this year) 2 3 6 7 7 5 8 7 8 7 7 6 10 6 4 to =D (Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed.) Identify the rejection region. Choose the correct answer below. O A. t>1.895 O B. t 1.895 O C. t 2.365 O D. t< -2.365 (c) Calculate d and s.-
How would you figure this out!
The sampling distribution of a statistic is (select the best answer): The mechanism that determines whether the random sampling was effective. A normal curve, for which probabilities are obtained by standardizing. A distribution of all parameters from the population that is to be randomly sampled. A distribution of a single statistic from repeated random samples of the same size, from the same population. A distribution of all possible summary statistics from a single random sample, from the same population.
Single-Sample z test. Here are the Degree of Reading Power (DRP) scores for a random sample of 10 third grade students in the Albany City school district: 31, 27, 38, 34, 42, 28, 26, 43, 46, 27 You wonder whether the mean score of this sample is greater than the population mean of all third grade students in the Albany City school district, which is 30. Suppose scores on the DRP are known to be normally distributed with a population standard deviation of 11. Step 1) Population 1 (Sample): Population 2: Null Hypothesis (H0): Research Hypothesis (H1): Step 2) Determine the characteristics of the comparison distribution. Sample Mean = M = _________ Mean of the population = μ = ________ Population standard deviation = = _________ Standard deviation of distribution of means = = __________ Step 3) Determine the cutoff score on the z distribution (use a 0.05 p value). Cut-off score = _________ Step 4) Determine your sample’s z score. z = ___________ Step…
A company wants to determine whether its consumer product ratings (0 - 10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a = 0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). Consumer Rating (last year) Rating (this year) 2 3 5 6 7 8 5 6. 8 6. 4 4 4 4 9 3 (a) Identify the claim and state H, and Ha. The claim is "The product ratings have from last year to this year." Let Hg be the hypothesized mean of the ratings last year minus the ratings this year. State H, and Ha. Choose the correct answer below. O A. Ho: Ha # 0 O B. Ho: Hd 2 0 OC. Ho: Ha = 0 Ha: Ha = 0 Hạ: Ha 0 O E. Ho: Ha zd Ha: Ho 2.365 B. t 1.895 O D. t>1.895
Given the population mean hypothesis H0: μ = 150 and H1: μ ≠ 150 identify the the type of test distribution. (A) Right-tail test (B) Two-tail test (C) Left-tail test (D) None of these
probability

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