Entries by Grace Wahito

I’m learning confidence intervals and made up a example

I’m learning confidence intervals and made up a example I want to try and learn from with your help. />Our real estate agent claims he sells 95% of his clients’ houses for above the asking price. How can I put this into a confidence interval? Do I need a specific number of the clients houses? […]

 

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In a sample of 8 high school students, they spent an average of 24.8

In a sample of 8 high school students, they spent an average of 24.8 hours each week doing sports with a sample standard deviation of 3.2 hours. Find the 95% confidence interval, assuming the times are normally distributed   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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From a random sample of 58 businesses

From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 20.53 with a population standard deviation of 3.54. What is the 95% confidence interval for the amount of time spent on administrative issues?   Looking for a Similar Assignment? Order now and […]

 

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Hypothesis Tests, or Statistical Hypothesis Testing

Hypothesis Tests, or Statistical Hypothesis Testing,is where you compare data sets or samples so we can infer something about the conclusion. My business situation hypothesis test would look something like a product we use everyday and the company claims that that product weights 25 pounds. We might want to check this claim and determine a hypothesis on […]

 

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