Create an example of each of the following types of survey questions. a) closed question b) ranking question Text Text

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How to identify Mode, median, and mean in positively and negatively skeweddistributions?

The income of residents of Chicago, IL has a bell shaped and symmetric histogram, with a mean of $65,000 and a S.D. of $13,000.  1) What percentage of residents have an income more than $78,000 or less than $52,000?   2) what percentage of residents have an income between $39,000 and $91,000?   3) What percentage of residents have an income less than $104,000?  4) What percentage have an income more than $65000?  5)  Less than $26,000 Hint: you need to draw a curve for each part 1-4, and calculate the mean ± 1, 2, 3 S.D.

Consider the following set of homerun distances (in feet) to centre field in 13 ballparks: {387, 400,400, 410, 410, 414, 415, 420, 420, 457, and 461}a. What is the median?b. What is the mean?c. What is the mode?

Determine what the key terms refer to in the following survey. To determine the average number of classes Santa Ana College students were taking, a sample of 30 Santa Ana College students were given and answered the following survey. How many classes you are taking this semester. o 1 o 2 o 3 o 4 Sample a. In average, those 30 students were taking 2.5 classes Parameter b. In average, all students in Santa Ana College were taking 2.6 classes Population c. The 30 Santa Ana College students who were surveyed Statistic d. All students in Santa Ana College

A histogram which is not symmetrically bell-shaped is called shrewed skewed stewed spoofed

Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 140 subjects with positive test results, there are 30 false positive results. Among 159 negative results, there are 3 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was ...

Twenty-nine college students, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustworthy the face of Mitt Romney appeared, as represented in their mental image of Mitt Romney’s face. Ratings were on a scale of 0 to 7, with 0 being “not at all trustworthy” and 7 being “extremely trustworthy.” Here are the 29 ratings:  2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7   a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?

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