What does an assessor need to understand before she or he can perform an assessment?Answer the question with a short paragraph, with a minimum of 300 words. APA formattingA minimum of two references are required. One reference for the book is acceptable but multiple references are allowed. There should be multiple citations within the body of the post. Note that an in-text citation includes author’s name, and year of publication.
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10. (10) Which activity could probabilities be computed using a Binomial Distribution?a. Flipping a coin a 100 timesb. Throwing a die one hundred timesc. The probability of getting a heart while playing card gamesd. Grades earned by 100 students on a statistics final exam11. (11) Many researchers have argued that the TB skin test is not accurate. Imagine that the TB skin test is only 70% accurate. Sarah is thinking about having the test. Before she has the test she wonders the probability that she has TB. The probability of Sarah having TB is …a. 70%b. 35%c. 30%d. More information needed to calculate12. (12) Imagine that the diabetic test accurately indicates the disease in 95% of the people who have it. What’s the miss rate?13. (15) Which of the following is the probability that subjects do not have the disease, but the test result is positive?a. Miss rateb. False positive ratec. Base rated. Disease rate14. (16) In a normal distribution, the median is ____it’s mean and mode.a. Approximately equal tob. Bigger thanc. Smaller thand. Unrelated to15. (17) In a normal distribution, __ percentage of the area under the curve is within one standard deviations of the mean?a. 68%b. 100%c. 95%d. It depends on the values of the mean and standard deviation16. (18) A normal distribution with a mean of 15 and standard deviation of 5. 95% of its area is within__a. One standard deviation of the meanb. Two standard deviations of the meanc. Three standard deviations of the meand. It depends on the value of the mode17. (19)The mean of a standard normal distribution is:a. 0b. 1.0c. -1.0d. 10018. (20) The standard deviation of the mean for a standard distribution is:a. 0.0b. 1.0c. 100d. 68%19. (21) A normal distribution with a mean of 25 and standard deviation of 5. What is the corresponding Z score for a case having a value of 10?20. (20) Consider a normal distribution with a mean of 25 and standard deviation of 4. Approximately, what proportion of the area lies between values of 17 and 33.a. 95%b. 68%c. 99%d. 50%21. (23) Consider a normal distribution with a mean of 10 and standard deviation of 25. What’s the Z score for the value of 35?22. (24) For a standard normal distribution, what’s the probability of getting a positive number?a. 50%b. 95%c. 68%d. We cannot tell from the given information23. (27)Two-hundred students took a statistics class. Their professor creatively decided to give each of them their Z-score instead of their grade. Rachel got her Z-score of -0.2. She was wondering how well she did on the exam.a. It was very good, much better than almost all of the other studentsb. It was so-so, but still better than half of the students.c. It was not that good, but not at the bottom of the distributiond. It was very bad and she needs to work much harder next time24. (28) A researcher collected some data and they form a normal distribution with a mean of zero. What’s the probability of getting a positive number from this distribution?a. 25%b. 50%c. 75%d. We need to calculate the standard deviation and then decide.25. (29) Which of the following description of distribution is correct?a. A Binomial distribution is a probability distribution for independent events for which there are only two possible outcomesb. You cannot use the normal distribution to approximate the binomial distributionc. Normal distributions cannot differ in their means and in their standard deviations.d. Standard normal distributions can differ in their means and in their standard deviations.26. (30) A toy factory makes 5,000 teddy bears per day. The supervisor randomly selects 10 teddy bears from all 5,000 teddy bears and uses this sample to estimate the mean weight of teddy bears and the sample standard deviation. How many degrees of freedom are there in the estimate of the standard deviation?27. (31) Imagine you have a population of 100,000 cases. For which of the following degrees of freedom is the closest estimation of the population parameter?a. 4b. 6c. 10d. 100028. (33) Imagine that the average weight of a total of 500 girls in a high school is 35kg. Tom randomly sampled 10 girls and measured their weight. And then he repeated this procedure for three times. The means and standard deviations are listed as following. Which sample estimate shows the least sample variability?a. Sample one: mean=34, SE=5b. Sample two: mean=30, SE=2c. Sample three: mean= 26, SE=3d. Sample four: mean= 38, SE=529. (36) For which of the following degrees of freedom is a t distribution closest to a normal distribution?a. 10b. 20c. 5d. 100030. (37) In order to construct a confidence interval for the difference between two means, we are going to assume which of the followings? (Select all that apply)a. The two populations have the same variance.b. The populations are normally distributed.c. Each value is sampled independently from each other value.d. The two populations have similar means31. (38) A researcher tries to compare grades earned on the first quiz by boys and girls. He randomly chooses 10 students from boys and 15 students from girls and calculates the confidence interval on difference between means. How many degrees of freedom will you get in this t distribution?32. (39) Which of the following choices is not the possible confidence interval on the population values of a Pearson’s correlation?a. (0.3, 0.5)b. (-0.7, 0.9)c. (-1.2, 0.3)d. (0.6, 0.8)33. (41) Which of the following descriptions of the t distribution is correct? (Select all that apply)a. With smaller sample sizes, the t distribution is leptokurticb. When the sample size is large (more than 100), the t distribution is very similar to the standard normal distributionc. With larger sample sizes, the t distribution is leptokurticd. The t distribution will never be close to normal distribution34. (42) _________________refers to whether or not an estimator tends to overestimate or underestimate a parameter. ______________refers to how much the estimate varies from sample to sample.a. Bias; standard errorb. Sample variability; Biasc. Mean; standard deviationd. Standard deviation; Mean35. (43) Which of the following descriptions of confidence intervals is correct?a. Confidence intervals can only be computed for the meanb. We can only use the normal distribution to compute confidence intervalsc. Confidence intervals can be computed for various parametersd. Confidence intervals can only be computed for the population
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Nata spent $28 on 2 DVDS. At this rate,how much would 5 DVDS cost? At what rate did she spend her money?
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Answer 5 questions. Include questions in black and answers in red.1-16 Ray Bond sells handcrafted yard decorations at county fairs. The variable cost to make these is $20 each, and he sells them for $50. The cost to rent a booth at the fair is $150. How many of these must Ray sell to break even?1-17 Ray Bond, from Problem 1-16, is trying to find a new supplier that will reduce his variable cost of production to $15 per unit. If he was able to succeed in reducing this cost, what would the break-even point be?1-20 Farris Billiard Supply sells all types of billiard equipment and is considering manufacturing its own brand of pool cues. Mysti Farris, the production manager, is currently investigating the production of a standard house pool cue that should be very popular. Upon analyzing the costs, Mysti determines that the materials and labor cost for each cue is $25 and the fixed cost that must be covered is $2,400 per week. With a selling price of $40 each, how many pool cues must be sold to break even? What would the total revenue be at this break-even point?1-21 Mysti Farris (see Problem 1-20) is considering raising the selling price of each cue to $50 instead of $40. If this is done while the costs remain the same, what would the new break-even point be? What would the total revenue be at this break-even point?1-22 Mysti Farris (see Problem 1-20) believes that there is a high probability that 120 pool cues can be sold if the selling price is appropriately set. What selling price would cause the break-even point to be 120?
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A man drove 13 mi directly east from his home, made a left turn at an intersection, and then traveled 3 mi north to his place of work. If a road was made directly from his home to his place of work, what would its distance be to the nearest tenth of a mile?
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approximately fraction of the american flag is blue, explain
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75 multiple choice masters level healtcare statistics questions.Link to the test is attached
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