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bobby molina

bobby m.

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The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box, with = 8. A random sample of 90 Nero matchboxes shows the average number of matches per box to be 42.5. Using a 1% level of significance, can you say that the average number of matches per box is more than 40?(a)What are we testing in this problem?a single meana single proportion Correct: Your answer is correct.(b)What is the level of significance? Correct: Your answer is correct.State the null and alternate hypotheses. (Enter != for as needed.)H0: Correct: Your answer is correct.H1: Correct: Your answer is correct.(c)What sampling distribution will you use? What assumptions are you making?We'll use the standard normal. Since the sample size is sufficiently large we only need to assume the data are a random sample from the relevant population.We'll use the Student's t. Since the sample size is sufficiently large we only need to assume the data are a random sample from the relevant population. We'll use the standard normal. Since the sample size is not sufficiently large we need to assume the data are a random sample from the relevant population and that the population distribution is at least mound shaped.We'll use the Student's t. Since the sample size is not sufficiently large we need to assume the data are a random sample from the relevant population and that the population distribution is at least mound shaped.Correct: Your answer is correct.What is the value of the sample test statistic? (Round your answer to two decimal places.) Incorrect: Your answer is incorrect.(d)Find (or estimate) the P-value. (Round your answer to four decimal places.)P-value = Incorrect: Your answer is incorrect.Probabilities should be between 0 and 1.

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Debt securities held primarily for sale in the near term to generate income on short-term price differences are known as Available-for-sale securities. Held-to-maturity securities. Trading securities. Discontinued operations.

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2. An object is moving at a constant velocity to the right. Which of the following is true about the forces acting on the object? a. A constant force must be applied to the right to maintain its velocity. b. There are no forces acting on the object. c. The forces acting on the object are balanced, meaning the net force is zero. d. There is a net force to the right, which is keeping the object moving. Explain your choice:

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If beginning inventory is understated, what will be the effect on cost of goods sold and net income in the current year? O Understated; overstated O Overstated; understated O Overstated; overstated O Understated; understated

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The process of glycolysis produces two molecules of pyruvate from a molecule of glucose. At the end of glycolysis the majority of the potential energy that had been contained in glucose was used directly for cellular work is now contained in ATP is now contained in NADH is now contained in the two pyruvates was lost to the environment as heat

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A patient has difficulty interpreting his awareness of body position in space. Which lobe is most likely to be damaged? O Parietal O Occipital O Frontal O Temporal

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In the context of emotion-focused coping, ________ refers to wishful thinking or doing something to get one's mind off a situation. Question 16 options: escape-avoidance reappraisal self-control distancing

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30 10) ?(a² – 95a) a=6 For problems 10-12, use desmos to evaluate the summation 256 11) ?(2n - 24?n) n=2 3? 12) ?sin(x) + 0.045 x=1

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1. At the same time each day, a researcher records the temperature in each of three greenhouses. The table shows the temperatures in degrees Fahrenheit recorded for one week. Greenhouse 1 Greenhouse 2 Greenhouse 3 73 71 67 72 69 63 73 72 62 66 72 61 68 65 60 71 73 62 72 71 59 Use a 0.05 significance level to test the claim that the average temperature is the same in each greenhouse. a. Calculate the descriptive statistics (sample size, mean, and standard deviation) for each greenhouse. b. State the null hypothesis and alternative hypothesis. c. Specify the significance level. d. Calculate the test statistic. e. Determine the p-value. f. State a conclusion about the null hypothesis. g. State the final conclusion that addresses the original claim.

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Regression. A coach wants to see the relationship between the statistics of practice games and official games of a local soccer team. A sample of 15 players was used and the resulting (partial) Excel output is shown below. Assume both x and y form normal distributions. Regression Statistics Multiple R R Square 0.70524 Adjusted R Square 0.668395 Standard Error 8.703633 Observations 15 Coefficients Standard t Stat P-value Error Intercept 40.00311 8.506861 4.794266 0.001366 Lower 95% Upper 95% 21.1673 60.40101 Midterm 0.739029 0.172183 4.374288 0.002365 0.362046 1.169078 (e) The degrees of freedom are: A. 15 B. 14 C. 12 D. 13 (f) At the 5% significance level it can be concluded that there is evidence to suggest the correlation coefficient is A. positive B. zero C. negative

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