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Question: A researcher wishes to estimate the average amount of money that a person spends on lottery tickets per month. A sample of 50 people who play the lottery found a mean of $19 with a standard deviation of 6.8. Find the 95% confidence interval of the population mean.
Explain your answer to someone who is familiar with the T test for a single sample, but not with the T test independent means.
question university h has decided to accommodate more students this fall. knowing that typically 40 if the students
Where should the warranty limits be set so that only 10% of the TVs need repairs at the manufacturer's expense?
How to determine the probability that a randomly selected player bats over 0.300? How to determine the probability that a team of 25 players will have a mean above 0.275?
Solve the following problem for distribution with a mean 80 and standard deviation of 10. Find out at least what percentage of values will fall between 60 and 100.
At the 0.01 significance level, is there a difference in the mean number of times men and women order takeout dinners in a month? Calculation of the p-value is not required.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. What is the lower limit of the 90% confidence intervel? What is the upper limit of the 90% confidence interval?
to test the effect of sample size in a normal distribution with mu100 and sigma12 determine the probability of
Use the .02 significance level. 2. The decision rule is to reject H0 if Z greater than ___? 3. Compute the value of the test statistic. The test statistic is Z=___. 4. What is the p value?
A student is taking a 10 question multiple choice quiz. There are four possible answers to each question. The student decides to guess at random on all 10 questions.
The number of items rejected daily by a manufacturer because of defect for the last 30 days are 22, 21, 8, 17, 25, 20, 18, 19, 14, 13, 11, 6, 21, 23, 4, 19, 11, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 9. Complete this frequency table for the..
What is the probability of getting a number less than 5 on both?
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