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In addition to knowing how many customers will enter your restaurant you will also like to start developing a 99% Ci for daily revenue. Your sample size is 50 you sample mean is $4500 and you sample standard deviation is $150. You do not have enough information to find a population standard deviation
What is your margin of error
What is the CI based on your margin of error
Suppose you wanted to develop a 95% Ci repeat parts a and b for a 95% Ci.
Test whether the mean weight is greater than 16 ounces with P-value approach.
If the server has 40 customers in one shift, what is the probability that her total tips are less than $250? (Assume that these 40 customers represent a simple random sample).
Given the following data, calculate the EMV for each investment alternative. Which is best based on the EMVs you calculated?
Find values for the mean and variance of X. Using a distribution approximation, calculate the probability that there are more than 10 faulty disks in a box of 500 disks.
I have the t-score of 1.660 an a standard error of .036. I hope they are correct, but also need the test effect and test statistic, p-value.
suppose you were given the task of estimating the proportion of drivers in troy al who text while they drive. discuss
A fair coin was flipped three times and landed heads three times. What is the probability of a head on the next toss?
Please explain the difference between confidence interval and significance level and how they interact or "influence" each other.
The number of children, x, belonging to each of eight families registering for swimming was 2, 2, 2, 4, 2, 1, 2, 2. Find the mean, x. (Give answer correct to 2 decimal places.)
Also use the regression model to predict a student's average if he/she misses 4 classes.
In other words, explain why, all else being equal, as sample size increases the likelihood of finding a statistically significant relationship increases.
A poll found that 38% of male voters and 46% of female voters support a particular candidate. To test whether this candidate has equal levels of support between male and female voters, the null hypothesis should be
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