Calculus and Above

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Test the claim that for the population of statistics final
Test the claim that for the population of statistics final exams, the mean score is 72 using alternative hypothesis that the mean score is different from 72. Sample statistics include n=17, x¯¯¯=73, a… read more
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A result from a hypothesis test is found to be statistically
A result from a hypothesis test is found to be statistically significant. What does that indicate concerning the conclusion to the hypothesis​ test?… read more
Sandhya
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A group of inferential statistics that make no assumption
A group of inferential statistics that make no assumption about the level of measurement or the distribution of data in the population is referred to as Parametric statistics Nonparametric statistics … read more
R.R. Jha
R.R. Jha
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A TSU student is interested in examining the effect
A TSU student is interested in examining the effect education and training on police officers in an attempt to reduce incidences of police brutality on minority population. To accomplish this goal the… read more
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A researcher randomly selects a Sample of 100 Barry
A researcher randomly selects a Sample of 100 Barry students. And Asking each student Age, she Calculates the Average Age of the Sample to be 21.3 Years. She then, estimates that the Average Age of Al… read more
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Statistics. Of the several inferential statistics discussed
Of the several inferential statistics discussed in class, name the most appropriate statistic (or its symbol) for responding to each of the following: ______1. I used what statistic to come to conclude: gpa increases, on average, by 3 points for every additional hour studied. … read more
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Suppose that statisticians determine that there is a
Suppose that statisticians determine that there is a significant positive correlation between the grade earned in the class College Reading Skills and the grade earned in Statistics. Does achieving a … read more
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The claim is that the proportion of peas with yellow pods is
The claim is that the proportion of peas with yellow pods is equal to 0.25​ (or 25%). The sample statistics from one experiment include 590 peas with 120 of them having yellow pods. Find the value of … read more
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The claim is that the IQ scores of statistics professors are
The claim is that the IQ scores of statistics professors are normally​ distributed, with a mean greater than 129. A sample of 29 professors had a mean IQ score of 132 with a standard deviation of 14. … read more
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A type I error occurs when we find statistical significance
A type I error occurs when we find statistical significance when really there was none. In other words... All of the above. A calculation error occurred. The sample statistic was misleading None of th… read more
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I need some help with my economic statistics homework! I am
Hi I need some help with my economic statistics homework! I am very confused.1. The mean income per person in the United States is $38,500, and the distribution of incomes follows a normal distributio… read more
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There will be a series of 10 to 20 questions: Instructions:
There will be a series of 10 to 20 questions: Instructions: Statistical Application assessment #3 is a bit different. Rather than asking you to perform certain computational exercises it asks you to d… read more
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Find the value of the test statistic z using z = A claim
Find the value of the test statistic z using z = A claim is made that the proportion of children who play sports is less than 0.5, and the sample statistics include n = 1671 subjects with 30% saying t… read more
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Week 3 : STA3163 Intermediate Statistics - Test 3 Time Remaining:
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Test a research hypothesis that data (Sample) that was drawn
Test a research hypothesis that data (Sample) that was drawn from this same area (Population) is different in its lead contamination, and is therefore not representative. Use a Z-test at the 0.05 leve… read more
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A manufacturer claims his best product has an average lifespan
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What percent of the RADS scores fall below and above 2.0 SDs
What percent of the RADS scores fall below and above 2.0 SDs? Descriptive Statistics N Minimum Maximum Mean Std. Deviation Statistic Statistic Statistic Statistic Std. Error Statistic rads 215 32 113 … read more
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determine the mean and standard deviation (SD) for the baseline
determine the mean and standard deviation (SD) for the baseline RADS adolescent-report depression scores (rads). Assuming a normal distribution, what is the RADS score if the adolescent's score is -1.… read more
R.R. Jha
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