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Q: Interpret effect size t(90)=4.06, p=.001, n2= .11 Small, medium, or large
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Q: Hurricanes Katrina and Rita caused the flooding of large parts of New Orleans, leaving behind large…
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Q: Hurricanes Katrina and Rita caused the flooding of large parts of New Orleans, leaving behind large…
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Q: Explain the Difference between Absolute dispersion and relative dispersion?
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Q: you obtain a test statistic of z = 2.33 Find the p-value accurate to 3 decimal
A: It is given that, the z test statistic is 2.33.
Q: Claim: The proportion of people who smoke is equal to 0.19. Identify a Type I error for the claim…
A: Type I error : P(Reject Ho | Ho is true)
Q: The heights of a group of men averaged 69 inches and followed the normal curve. The 91st percentile…
A: Solution: Let X be the height of group of men. μ= 69 inches Average height of men. The 91st…
Q: What is the computed value of the pillai's V. Final answer tk r places.
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Q: to calculate the standard error of the mean what will you need
A: Consider a random variable X, has mean µ and the standard deviation of σ.
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A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case…
Q: An honours psychology student at Harvard wanted to examine the association between mother's warmth…
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Q: 1. Name the appropriate significance test
A: Answer: For the given data, we observe that both the samples of odd feather and typical feather are…
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Q: Given the u = 38.27 and o = 3.56, compute the z- score that corresponds to the given score X =…
A: Given that : u = 38.27 Standard deviation = 3.56 X = 35.52 By using standard normal distribution Z…
Q: Suppose you roll one six-sided die. Let X = the number shown on the die. Calculate μ, the mean value…
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Q: calculate the standard score of the given x value x=36.5 where u= 36.5 and a=36.7
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Q: Using the data attached, compute the following 1. x-bar= 2. Sx= 3. n=
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Q: Level of measurement for I.V.: Brushing your teeth D.V: The number of cavities.
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A: From the given box plot, Minimum value: 30 First quartile : 38 Median :45 Third quartile: 60…
Q: Please circle your answers. Thank you in advanced!
A: Part a: The variable under study is the increment in weight (pounds), so the level of measurement…
Q: O E. Ho: H270 %3D the administrator's claim that the mean score for the state's eighth graders on…
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Q: Application Exercise: A food company has developed a high mineral sea salt (sodium). A nurse…
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Q: Briefly define: Power, Type I error, and Type II error.
A: In statistical hypothesis testing, a type I error is the rejection of a true null hypothesis (also…
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Q: A large automobile insurance company selected samples of single and married male policyholders and…
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Q: Aleks spins a 9 sided spinner 56 times. Each of the nine sides has a different colour on it. He…
A: Aleks spins a 9 sided spinner 56 times. Thus, n = 56 The spinner has 9 different colors on it. Thus,…
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- A researcher develops a test for identifying intellectually gifted children. It has a μ=56 and σ=8. a. what percentage of children are expected to score above 60? b. What percentage of the scores will be below 54? *ANSWER BOTH PARTS A & B*Suppose a new drug is intended to improve walking distance in patients with Parkinson Disease A researcher measures patients walking distance in feet before and after trying the drug for 9 weeks. What is the value of t obsThe value of (8.1)/ .
- Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Question: If a participant has the same corneal thickness in their normal eye as the eye with Glaucoma, what would be the value for difference: measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma.A study at Harvard found that 44% of their students binge drink. You are at Princeton doing a similar study. How many people do you need to interview to get your interval width down to 10 percentage points? For a 95% CI, what is that sample size?Average speed on a freeway is 80 mph. Among all vehicles 65% drive 8 miles above the speed limit of 70 mph. 34 What fraction drive within ± 5 mph from the mean speed? a 0.7327 b 0.6978 c 0.6646 d 0.6330
- Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Question:If the t statistic falls below the effect size in which we reject the null, but the p value is greater than 0.05. Do i reject the null? As my scenario had no population mean because the differences were recorded, do i set a test value of 10 or keep it at 0?A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately mile from the school. Assume that it is reasonable to regard the teen drivers in this study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Female Driver -0.1 0.4 1.1 0.7 1.1 1.2 0.1 0.9 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use males - females: Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t= df = P = Male Driver 1.4 1.2 0.9 2.1 0.7 1.3 3 1.3 0.6 2.1 (b) Do…Thirty different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 92 sec, what does df denote, and what is its value? what's the value of df?
- Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Question: Write a report summarizing your findings When writing the report consider that medical staff estimate that a difference of 4.5 microns or more could impact on their ability to interpret eye pressure correctly.We collected data for 300 people at a movie theater. For every person, we know what genre of movie they saw and whether or not they bought snacks.(we would expect 100% of people to bring snacks) Here are the results Type of Movie Snacks No Snacks Action 26 34 Comedy 47 23 Family 90 30 Horror 30 20 chi square test of independencehe General Social Survey asked the question, "After an average work day, about how many hours do you have to relax or pursue activities that you enjoy?" to a random sample of 1,155 Americans. The average relaxing time was found to be 1.65 hours. G. What is D. What is the statistic given? Describe it in words and give the numerical value. E. Describe the parameter corresponding to the statistic from Part (D) in words.