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Conduct the following test at the alpha α equals=0.050 level of significance by determining (a) the null and alternative hypotheses,(b) the test statistic, and (c) the P-value. Assume that the samples were obtained independently using simple random sampling.
Test whether p 1 not equals p 2p1≠p2. Sample data are x 1 equals 30x1=30,n 1 equals 254n1=254,x 2 equals 36x2=36, and n 2 equals 301n2=301
why is the coefficient of correlation an important tool for statisticians? provide some specific examples from real
A normal tomato will gain an average of 2 ounces per week during the growing season. A sample of 100 tomatoes is given a special hormone to increase their growth.
Describe some ways monasticism aided the growth and prosperity of political empires. You are welcome to use two other sources besides your text. Make sure to cite your sources. Please do not use Wikipedia as a source.
the 70-year long-term record for weather shows that for new york state the annual precipitation has a mean of 39.84
Whether they voted for the Democratic or for the Republican candidate in the last congressional election. Which of these variables are categorical and which are quantitative?
MAT10251 STATISTICAL ANALYSIS PROJECT - Choose a level of significance for any hypothesis test and a level of confidence for any confidence interval. Enter these values on page 2 of the Part C cover sheets along with the sample number from Part A.
Problem: Sisters and brothers. How strongly do physical characteristics of sisters and brothers correlate? Here are data on the heights (in inches) of 12 adult pairs:12
the positioning of nests in shrubs was noted for a species of bird. use the data shown to determine if there was a
Test the claim that the actual amount of coke exceeds 12 ounces. (Note: You can use the value of $s$ as the value of $sigma$ for your hypothesis test).
Use regression to develop a trend line that could be used?to forecast monthly sales for the next year. Is the slope of?this line consistent with what you observed in question 1? ?If not, discuss a possible explanation.
A pollster calls 500 randomly selected people and all 500 respond to her first question. Because the subjects agreed to respond, is the sample a voluntary response sample?
Can we conclude that car size is dependent on marital status? YES or NO (circle one)
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