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Consider the following hypothesis test.
H_0: μ ≥ 25
H_1: µ < 25
A sample of 100 yields x ¯ = 24. The population standard deviation is 12. If a = .05, find the acceptance/rejection region H_0 and determine if you accept or reject the hypothesis H_0 (Draw graph!).
What is the p-value?
A professor wants to test all possible pairwise comparisons among three means. If we need to maintain an experiment -wise alpha of 0.05, what is the error rate per comparison after applying Bonferroni correction?
What is the Z score of a child eating 20 treats - what is the Z score of a child eating 5 treats and faculty or administrative staff member
1. Complete each of the ANOVA summary tables. In Addition, answer the following questions for each of the ANOVA summary tables:a. What is the factorial notation?
The probability that an appliance is in repair
A student scored 76 on a general science test where the mean and standard deviation were 82 and 8, respectively he also scored 53 on a psychology test where the class mean and standard deviation were 58 and 3, respectively. In which class was his rel..
What are the mean and standard deviation of the sampling distribution of the mean for N = 16
From the e-Activity, summarize the blog entry that you have read. Next, explain the manner in which Nate Silver's analysis in your chosen blog entry addresses the salient points of one particular topic related to this class.
An alternative has a discounted project cost of $5,215,000 with no salvage value. The estimate was in constant dollars and the discounting used mid-year factors. While the period of analysis is 4 years, the alternative only provides benefits f..
Given a normally distributed variable (x), if you know that for a value of x = 244 the z-score = 2.20, what is the probability of any x value being above 244?
An RCMP officer would like to estimate the true mean speed of all vehicles along a particular stretch of highway. She measures the speeds of a simple random sample of 40 vehicles and calculates a mean speed of 114.55 km/h. The population stan..
A random sample of 20 purchases showed the amounts in the table (in $). 20.20 21.74 62.41 82.16 44.39 45.32 66.55 46.67 27.15 51.24 85.64 31.84 71.85 53.02 33.74 86.93 14.81 54.32 77.2359.17
Let variable X represents the improvement in time for each assembly line worker. Let μ represents the average improvement in time for the population. Has the training improved the time required on the job? Please test the hypothesis use α=0.05 ..
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