Is the lottery fair? Power ball is a multistate lottery in which players try to guess the numbers that will turn up in a drawing of numbered balls. One of the balls drawn is the "Powerball." Matching the number drawn on the Powerball increases one's winnings. In a 17 month period, the Power ball was drawn from a collection of 35 balls numbered 1 through 35. A total of 147 drawings were made. For the purpose of this exercise, we grouped the numbers in to five categories: 1-7, 8-14, and so on. If the lottery is fair, then the winning number is equally likely to occur in any category. Following are the observed frequencies. Test the hypothesis that each of the categories is equally likely. Use the 0.010 level of significance and the P-value method with the TI-84 Plus calculator. 15-21 22-28 29-35 35 Category 1-7 8-14 Observed 25 30 34 23 Send data to Excel

Is the lottery fair? Power ball is a multistate lottery in which players try to guess the numbers that will turn up in a drawing of numbered balls. One of the balls drawn is the "Powerball." Matching the number drawn on the Powerball increases one's winnings. In a 17 month period, the Power ball was drawn from a collection of 35 balls numbered 1 through 35. A total of 147 drawings were made. For the purpose of this exercise, we grouped the numbers in to five categories: 1-7, 8-14, and so on. If the lottery is fair, then the winning number is equally likely to occur in any category. Following are the observed frequencies. Test the hypothesis that each of the categories is equally likely. Use the 0.010 level of significance and the P-value method with the TI-84 Plus calculator. 15-21 22-28 29-35 35 Category 1-7 8-14 Observed 25 30 34 23 Send data to Excel

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher would like to test the claim that the proportion of middle-aged smokers with a lung capacity under 3 liters is less than the proportion of senior citizen nonsmokers with a lung capacity under 3 liters. A random sample of 46 middle-aged smokers had 32 with lung capacities under 3 liters, and a random sample of 46 senior citizen nonsmokers had 25 with lung capacities under 3 liters. These two independent samples will be used in a hypothesis test of this claim. Which test statistic formula should be used for this test? (1-₂)-(1-12) DII Ot= Ot= Oz= F3 Oz= F + VT 722 4 d-d 8d √n (P1-P₂) Submit Question O None of the above pq pq Vm + m (1₂) - (1-12) of V + 72₂ % 5 T (P1-P2) G A B FS 6 H F6 N & 7 U J PrtScn 8 FB K Home 9 F9 End 0 F10 P
2. Forty-five percent of the entering CSUN freshmen in Fall 2019 were proficient in math. www.csun.edu/counts/new_first_time_freshman.php a. You want to see if the percentage is different for this fall's entering freshmen. Your hypotheses are Ho: На: where p stands for the percentage of freshmen who were proficient in Fall 2019 / this fall. b. Suppose that the null hypothesis is true that the percentage is 45% for this fall. Here is the sampling distribution of the values of p that would be expected if you repeatedly took random samples of 150 freshman entering this fall and found the proportion proficient in math. From the sketch alone, estimate the mean and the SE 0.33 0.37 0.41 0.45 0.49 0.53 0.57 If the null hypothesis is true, would it be unusual to get 50% in your sample who were proficient in mathematics? Explain: If the null hypothesis is true, would it be unusual to get 45 freshmen in your sample who were proficient in mathematics? Explain: c. You take a random sample of 150…
Part I. Constructing a Null and Alternative Hypothesis: Write a pair of null and alternative statistical hypothesis (can be about any topic).
Please do not give solution in image formate thanku Question22Which of the following is the correct null hypothesis for an independent-measurtest?mu₁ - mu₂ = 0M₁-M₂ = 0mu₁- mu₂ does not = 0M₁-M₂ does not = 0
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If a hypothesis test produces a z-score in the critical region, which decision should be made? O reject the alternative hypothesis ) fail to reject the alternative hypothesis ) reject the null hypothesis ) fail to reject the null hypothesis O O O 0
In a given hypothesis test, the null hypothesis cannot be rejected at the 0.005 and the 0.01 level of significance, but can be rejected at the 0.03 level. The most accurate statement about the p- value for this test is: O A. p-value 0.03
State the null and alternative hypotheses Calculate the expected results for the hypothesis test assuming the null hypothesis is true and determine the hypothesis test model , i.e., “cut-off” critical values etc. Formulate the decision rule, i.e., include “one-tail ”left, or “one-tail” right, or “two-tail” determination etc. Determine the experimental outcome. Determine the conclusion, and answer the question(s) posed in the problem, if any. The average IQ of a group of researchers is quoted to be 260. Thinking that this figure is too large, a consulting firm tested a random sample of 8 researchers and found that the average IQ was 250 with s=8. Test at a level of significance of 1%.
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A hospital claims that the mean wait time for emergency room patients is more than 38 minutes. Identify the null hypothesis Ho, and the alternate hypothesis Ha in terms of the parameter
According to the Centers of Disease Control, about 20% of American young people between the ages of 12 and 19 are obese. A student claims that the students his local schools are in better'shape than the national average, so'their proportion of obese students is less than 30%. Which are the appropriate null and alternative hypotheses for this study? Оно: р - 20%, Н р 20% Check Answer Cip
Under what circumstances are post tests necessary? When you fail to reject the null hypothesis with more than 2 treatment conditions When you fail to reject the null hypothesis with exactly 2 treatment conditions When you reject the null hypothesis with more than 2 treatment conditions When you reject the null hypothesis with exactly 2 treatment conditions 0000