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Use the-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal.
Test null hypothesis: u = 100 vs alternative hypothesis: u < 100 using the sample results,x-bar = 91.7, s = 12.5 with n = 30.
Test- statistic = ?
p-value = ?
reject or do not reject null hypothesis?
sales 2363 2.1 advertising - 279 price - 136 unemplpyment r2 .76units of measurement sales is in product units
what is the critical value for a one-tailed sign test at icircplusmn 0.01 when there are 14 samples?a. 4b. 1c. 2d.
Develop a model for determining how many people should be sent to contain the fire and for determining the best location for the firebreak.
a local microbrewery believes it produces the best tasting dark beer in baltimore. to make its case 7 volunteers are
Surveys 32 currents students discovering that 12 will return for summer school. b. with a 0.95 probability, how large of a sample would have to be taken to provide a margin of error of 3% or less?
Person committed crime, b court failed to prove it and found him not guilty - calculate test statistics and find P-value for test.
In a study, results were presented for a sample of 63 men who were asked to report their actual weight and their ideal weight. The mean difference between actual and ideal weight was 2.48 pounds
1. the ritz-carlton hotel used a customer opinion questionnaire to obtain performance data about its dining and
What is the first word in the alternative statistical hypothesis for any experiment with three levels of a single IV?
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
Compute the coefficient of correlation. Evaluate the strength of the relationship by computing the coefficient of determination.
A researcher wants to examine the relation between class rank and popularity among peers. Class rank is provided by the school and includes each student's rank in order. The researcher assesses popularity using a likability measure that provides s..
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