07/17/23

You generate a scatter plot using Excel. You then have Excel plot the trend line and report the equation and the R squared value. The regression equation is reported as
y=18.75x+12.43and the R2= 0.5041What is the correlation coefficient for this data set?
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07/15/23

choosing the right answer

I have a low variation data and trying to choose the right model for it including random effect and fama and French 1973 and pooled OLS . so I need help to with that of you can please let me know
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07/14/23

Confidence Intervals
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 99%... more
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07/11/23

Statistic question
A small pilot study was conducted prior to planning a large research study investigating the average SAT-verbal scores of students at one large high school. In the sample mean was 688 with a... more
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07/09/23

Out of 400 people sampled, 276 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.

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07/08/23

Sampling Distribution/Central Limit
A manufacturer knows that their items have a lengths that are skewed right, with a mean of 14.6 inches, and standard deviation of 4.7 inches.If 39 items are chosen at random, what is the... more
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07/08/23

Confidence Interval Estimate

In a Harris poll of 2000 human resource professionals, 41.8% said that body piercings and tattoos were big grooming red flags. Construct a 95% confidence interval estimate for the proportion of all... more
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07/07/23

Please explain in detail and give the answer so I can cross check my work.
Put the events in order of what is most likely to happen, to least likely to happen. If you were to win a million dollars for winning one of these events, which would you pick to play? Use... more
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07/01/23

Using the 2.5% significance level, can you conclude that the ERS claim is false?
The ERS  claims that the average net worth of chicken farmers in Kansas is at least  $40,000. A random sample of 35 chicken farmers had a mean net worth of $28,000. Assume that the net worth of all... more
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06/30/23

Express the confidence interval 65.4 % ± 8.5 % in interval form. Express the answer in decimal format (do not enter as percents).
Express the confidence interval 65.4%±8.5%65.4%±8.5% in interval form.Express the answer in decimal format (do not enter as percents).
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06/29/23

confidenc elevel
An experimenter finds that, on average, the reduction in systolic blood pressure is 16.9 for a sample of size 547 and standard deviation 6.4.Estimate how much the drug will lower a typical... more
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06/29/23

Construct a 90​% confidence interval of the population proportion using the given information. x=120, n=200
Construct a 90​% confidence interval of the population proportion using the given information.x=120, n=200
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06/27/23

Which statistical analysis should I run?
Thank you! I am struggling with settling on what the best approach to my test design to choose. My initial inclination is to run a two-way repeated ANOVA. I have two dependent variables measured at... more
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06/27/23

According to the WHO MONICA Project the mean blood pressure for people in China

According to the WHO MONICA Project the mean blood pressure for people in China is 128 mmHg with a standard deviation of 23 mmHg. Assume that blood pressure is normally distributed.Round the... more
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06/12/23

Ch 5, 6, 7, Questions 4
A normal distribution has a mean of 98 and a standard deviation of 5. Find the z-score for a data value of 100. Round to two decimal places
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06/03/23

tutoring for psych 1010 tests
I've already done this course and I can help as much as I can giving tips for studying and explaining terms and theories in the simplest way.
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04/27/23

Out of 600 people sampled, 222 had kids. Based on this, construct a 90% confidence interval for the true population proportion of people with kids.
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04/12/23

NFL Probability
The National Football League (NFL) polls fans to develop a rating for each football game. Each game is rated on a scale from 0 (forgettable) to 100 (memorable). The fan ratings for a random sample... more
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04/10/23

Statistics and analysis
Hello, I am looking for someone to edit and review my statistics paper online.
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04/09/23

Estimating Population Proportion
Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 362 with 14.9% successes at a confidence level of... more
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04/04/23

Where are my other recordings? Can they be accessed?
Hello, I went to prepare to take more lessons by reviewing a past lesson and it is gone.I picked Wyzant specifically for this reason. I really need my lesson with Sue, I plan to move forward with... more
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03/22/23

On a recent quiz, the class mean was 74 with a standard deviation of 4.4.

On a recent quiz, the class mean was 74 with a standard deviation of 4.4. Calculate the z-score (to 2 decimal places) for a person who received score of 63.z-score: Is this unusual?  Unusual Not... more
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12/12/22

What test to run in SPSS?
  Are reading scores, writing scores, math scores and science scores related?
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03/10/22

Sociology Question
To receive full credit for this essay question you are expected to write at least 200 words. You must used a paragraph format, citations (in text and reference list) and answer the prompt in its... more
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03/03/22

When should you use an ANOVA statistical design?

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