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Use example posted in this week Lectures section to estimate Population Proportion. Sample proportion is ps = 0.48, sample size 125, zc = 1.96 (90% confidence level).
0.26 to 0.64
0.39 to 0.57
0.41 to 0.52
0.28 to 0.71
Use a 1% level of significance to test the claim that there are more calls during the night than in the day.
Describe how the confidence intervals will change depending on whether the population standard deviation is known or unknown.
in a simple linear regression based on 30 observations the following information is provided y-6.921.35x and se2.78.
Linear Optimization
use multiple regression to find the line of best fit through the following data. what does this tell
A survey on household income in Northeast NJ area gave the following numbers in thousands of dollars:
Using an example from a hospital, create a mock data set for two specific variables of importance within hospital (minimum of 20). The data may be used for quality measures, patient inputs, demographics, financial data, etc.
Is there a relationship between sales and newspaper advertising? Support your answer?
a random sample of 6 music majors playing song s counted the number of mistakes each made. then these musicians played
there are two traffic lights working independently on your way home. each light is either red r yellow y or green g
What percentage of personal checking account customers carry average daily balances in excess of $800? What percentage of the banks customers carries average daily balances below of $200?
a bottling company is supposed to fill bottles with an average weight of 16 ounces. the company randomly selects
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