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Since Mr. Smith assigns grades based on actual performances of students in the class, Mr. Smith's exams have an average score of 81 and standard deviation of 12. Some do not believe Mr. Smith and have decided to take an SRS of 40 students in Mr. Smith's class and ask their exam scores.
a) What is the probability that a single student's score will be less than 73?
b) What is the probability that the average score of the sample will be greater than 80 but less than 87?
The stressors impacting on the mental health of (migrants OR refugees OR asylum seekers) in Australia. it should not be three mixed select either one category. As the issues can be quite different.
Determine margin of error for confidence interval in (a)?
Suppose business has been good and the company gives every employee a $50 raise. Tell the new value of each of the summary statistics.
Express the degree of likelihood as a probability value. "You have a 50-50 chance of choosing the correct answer." Whew-easy point! You are NOT allowed to get this one wrong
What should the warranty period be to replace a malfunctioning calculator if the company does not want to replace more than 1% of all the calculators sold.
Pick one of the groups discussed in this week's chapter (Canada's first peoples, theInnuof Labrador, thePimickamakCree, the Dene etc.) and provide the background on the environmental and issue(s) facing this group. What do you think of the creat..
What is the standard deviation of the sampling distribution of the proportion of sixes?
the proportion of public accountants who have changed companies within the last three years is to be estimated within 4
A 56-question multiple choice test has 4 possible answers for each question and a student chooses the answers to each problem at random. A student selects 16 correct answers.
We are 95% confident that the proportion of non sell-able items for Whole Fruits is anywhere between 6.4% and 15.6% HIGHER than the proportion of non sell-able items for Green Grocer.
The following data represent survival time in days after a heart transplant and patient age in years at the time of transplant for 10 randomly selected patients.
If the distribution of route lengths is normal, find a 95% confidence interval for the true mean route length of newspaper carriers who use their automobiles.
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