Develop a box plot and describe it shape
The following is a set of data from a sample of n=7
12 7 4 9 0 7 3
a. Calculate the first quartile (q1), the third quartile (q3) and the interquartile range.
b. Mention the five-number summary
c. Develop a box plot and describe it shape
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What is the appropriate null and alternative hypothesis to disprove Brad's claim that people can't distinguish between generic and brand-name chips?
Assume we happen to observe the random sample of 70 Richardson High School students in the school cafeteria. Determine the probability that the proportion of those 70 students in the cafeteria who smoke is no more than 20%.
Supposing that weights of newborn babies at certain hospital are normally distributed with mean 6.5 pounds and standard deviation 1.2 pounds, how many babies in group of 80 babies from this hospital will weight more than 8.9 pounds?
A random sample of 56 credit card holders showed that the 41 regularly paid their credit card bills on time. Determine a 95% confidence interval for p, the proportion of all credit card holders who pay their credit card bills on time.
Calculate the first quartile (q1), the third quartile (q3) and the interquartile range. Mention the five-number summary. Develop a box plot and describe it shape
Determine the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion regarding the null hypothesis, and final conclusion that addresses the original claim. Employ the P-value technique and the normal distribution as an approx
A district sales manager claims that the sales representatives at her company make an average of more the 40 sales calls per month.
The figure at the top of the next column represents the normal curve with m=24.6 miles per gallon and s=3.2 miles per gallon. The area under the curve is between x=18 and x=21 is 0.1107. Provide two interpretations of this area.
The population includes all 250 students in your large statistics class. You plan to obtain simple random sample of 30 students by using sampling frame of students present next Monday. (Select all that apply.)
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