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An automobile dealership has as one of its performance goals that the proportion of its automobiles sold that are deemed "good value for the money" by the purchasers be at least .90. For a random sample of 400 automobiles sold over the past six months, 352 were deemed by the purchasers to be "good value for the money."
Does this sample data provide evidence that the dealership is not meeting its performance goal?
Either use the p-value approach to hypothesis testing or use the significance level approach with α = .05.
Find the sample space for the number of outcomes (you don't need to list the possible outcomes, just how many possible outcomes there are).
Which measure of central tendency would you use to summarize the data below? Which inferential test would you use to determine if there is a difference in rainfall between the sample 2 and 3?
Construct a probability for the number of students in the sample who watch soap operas.
Find out annual break-even volume for the Rolling Creek Textile Mill.
For each of following data sets, select the most suitable response from choices below the table. A strong negative linear relation exists.
A Manager needs to decide between two machines to put into market following a Weibull distribution. Machine X test unit cost $3000 with beta=3 and theta=500 Machine Y test unit cost $2000 with beta=3 and theta=400
Compute lower and upper quartiles of log10-balances? Determine 95% range of the balances in $s? Express in English what the two boundaries mean.
Find the percent of a standard Normal model found in the given region. Round to the nearest hundredth of a percent.
Is global F ratio significant? Identify this F ratio, and describe whether it is important.Is coefficient for X1 (productivity) significant? How do you know? Mention its t value and accompanying P-value.
From the above function, it can be said that the expected yearly income of and find the multiple coefficient of determination
Madison Metals recently reported $9,000 of sales, $6,000 of operating costs other than depreciation, and $1,500 of depreciation. The company had no amortization charges and no non-operating income.
The main part of the ACS contacts 250,000 addresses by mail each month, with follow-up by phone and in person if there is no response. Each household answers questions about their housing, economic, and social status. What is the Population.
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