Q.5 population. Chest X-ray used as a In certain parts of the world, tuberculosis (TB) is present in 25% of the a diagnostic tool has an accuracy of 99% detection of TB if present. Only in 0.5% of the cases, normal people get a positive diagnosis. Draw a transition chart to demonstrate the model. Obtain the transition matrix. What is the probability that a randomly chosen person tests negative? If a randomly chosen person tests positive, what is the probability that the person was disease free? a. b. C. d.

When constructing a correlation matrix table in APA style, what are the criteria for deciding whether to place zero, one, two, or three asterisks next to the correlation coefficient?

part a and b

8/8/1/9 A scientific study was conducted to determine the hours of sleep that college students get per night. The study surveyed 21 college students and obtained the following data:7.7, 7.1, 8.2, 8.2, 6.9, 7.4, 7.5, 8.8, 9.4, 7.7, 6.8, 7.3, 7.8, 7.8, 6.9, 9, 7.6, 7, 7.6, 7.5, 6.2Assuming the population standard deviation is σ=0.84σ=0.84, construct a 98% confidence interval for the average hours of sleep per night that college students get.xˉ=α/2=zα/2=Margin of Error: E=We are 98% confident that college students get an average of between                                   hours and                     hours of sleep per night.

EXAMPLE 5a If the number of items produced in a factory during a week is a random variable with mean 100 and variance 400, compute an upper bound on the probability that this week's production will be at least 120.

A data set includes weights of garbage discarded in one week from 62 different households. The paired weights of paper and glass were used to obtain the results shown to the right. Is there sufficient evidence to support the claim that there is a linear correlation between weights of discarded paper and​ glass? Use a significance level of α=0.05.   Click here to view a table of critical values for the correlation coefficient. LOADING... Correlation​ matrix: Variables Paper Glass Paper 1 0.3952 Glass 0.3952 1     Identify the test​ statistic, r.   r=enter your response here ​(Round to three decimal places as​ needed.)

i 1 4 Xi 4 1 3 3 4 yi 16 12 17 13 22 3. LO

Nationally, about 11% of the total U.S. wheat crop is destroyed each year by hail.† An insurance company is studying wheat hail damage claims in a county in Colorado. A random sample of 16 claims in the county reported the percentage of their wheat lost to hail. 17 7 8 10 13 19 16 12 8 9 25 21 14 7 11 3 The sample mean is x = 12.5%. Let x be a random variable that represents the percentage of wheat crop in that county lost to hail. Assume that x has a normal distribution and σ = 5.0%. Do these data indicate that the percentage of wheat crop lost to hail in that county is different (either way) from the national mean of 11%? Use α = 0.01. (a) What is the level of significance?Compute the z value of the sample test statistic. (Round your answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)

what do u conclude, are people less likely to visit with their own dogs

How is the hatching of water python eggs influenced by the temperature of the snake's nest? Researchers randomly assigned newly laid eggs to one of three water temperatures: hot, neutral, or cold. Hot duplicates the extra warmth provided by the mother python, and cold duplicates the absence of the mother. The table shows the result of the experiment. We want to test Ho: The distribution of hatching status is the same for eggs like these that are placed in cold water, neutral water, or hot water. Ha: There is a difference in the distribution of hatching status is the same for eggs like these that are placed in cold water, neutral water, or hot water. The researchers will use a chi-square test for homogeneity to analyze the findings and calculates a P-value of 0.4267. Hatching status Yes No Total Cold 16 11 27 Water Temperature Neutral Hot 38 75 18 29 56 104 Total 129 58 187 Which of the following is an appropriate conclusion, using a = 0.10? O Because the P-value of 0.4267 > a = 0.10,…