tuition for the current academic year is $60,000, but the university claims that the average grants and scholarship aid received is $37,000. You want to check and see if the tuition net of aid is in fact $23,000, so you ask a random sample of n = 20 students what net tuition they pay. From your survey you find ?̅ = $25,000 with a sample standard deviation of s = $5,000. Test your hypothesis at the 90% confidence level using the p

Q: Find the sample size need to find the Population Mean if the margin of error is $105, the confidence…

A: Solution: From the given information, confidence level is 0.95, σ=315 and E=105.

Q: a normal population has a mean of $92 and standard deviation of $11. You select random samples of…

A: Given information: Mean (µ)=92Standard deviation(σ)=11Sample size (n)=50 Find: PX¯-µ≤1.50 Formula: Z…

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Q: At a=0.05, what is the critical value? -1.984 1.66 -1.645 -1.66

A:

Q: A random sample of shoppers at a convenience store are selected to see how much they spent on that…

A: Standard deviation ,σ = 6.94confidence- level = 0.99So, level of significance = 1-0.99 = 0.01E =…

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: You have a normal distribution of test scores with a mean of 100 and an SD of 15. Use the empirical…

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: you know 10% of the people in Amsterdam describe themselves as hipsters. you ask 400 respondents if…

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Q: Determine the sample standard deviation.

A: Given  29.6 32.4 38.7 42.4 44.5 46.4 49.0 60.8 70.2 Now sample size (n) = 9…

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A:

Q: Allegiant Airlines charges a mean base fare of $89. In addition, the airline charges for making a…

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Q: A data set of employee salaries has an average of $60,000 with a standard deviation of $5,000. You…

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A: Given that, Mean = $60000 Standard deviation = $5000

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A:

Q: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

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A:

Q: d. Determine the sample standard deviation. Round your answer to 2 decimal places. e. Determine the…

A: The data set are :- X :- 29.6 32.4 38.7 42.4 44.5 46.4 49.0 60.8 70.2 Then,  We will find sample…

Q: distribution of sample means

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Q: which has a mean of 350 and a standard deviation of 50. His brother Kyle takes the Regional…

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Q: Four students take tests.  The results of each test for the class and the student are listed in the…

A: a) John scored an 85 Mean(μ)=77 standard deviation(σ)=4

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Q: 78 70 59 10 88 Given the above data set, what is the sample standard deviation of Study hours using…

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Q: Monthly Home Rent The average monthly rent for a one-bedroom home in San Francisco is $1229. A…

A: we have given that  n=15 ,sample mean =1350 ,sigma=250 , and mu=1229

Q: Professors at a local university earn an average salary of $80,000 with a standard deviation of…

A: Given:an average salary of $80,000  standard deviation of $6,000x=salary of professors at local…