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Q1) You are given sample mean and sample standard deviation. Use this information to create 90% and 95% confidence intervals for population mean. which interval is wider? If convenient, use technology to create the confidence intervals
A random sample of 33 eight - ounce serving of different juice drinks has mean of 98.8 calories and standard deviation of 49.3 calories.
90% confidence interval is...
95% confidence interval is...
Which interval is wider?
a) 90% confidence interval is...
b) 95% confidence interval is...
Why do we have so many several measures of central tendency? Are all really essential or do they essentially give same information? Why is measure of variation a essential accompaniment to measure of central tendency? Use examples in your discussion.
Regression equation to predict the dependent variable using multiple regression analysis:
With this important detail, are there any significant differences with LSD?
Caselet on McDonald’s vs. Burger King - Waiting time
prevent coronary artery vasoconstriction and the attendant reduction in blood flow to the heart and mechanical function.
Let p represent the proportion of registered voters in the state that would vote for the Republican candidate. The standard error for the proportion of those who phoned in who answered "yes" is
At least half the patients are under 15 years old? First, describe how this can be modelled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20 percent.
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Assume a sample of 60 Americans is taken to further investigate viewing habits. Suppose the population standard deviation for weekly viewing time is Q = 4..
Given length an athlete throws a hammer is a normal random variable with mean 50 feet and standard deviation five feet, what is the probability he throws it: Between 50 feet and 60 feet.
A bank wants to get new customers for their credit card. They try two different approaches in their marketing campaign. The first promises a "cash back" reward; the second promises low interest rates. A sample of 500 people are mailed the first br..
Determine the probability of exactly one success given Poisson distribution with mean of 2.0.
What is the probability that a person who has submitted one entry will win the following?
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
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