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- Plz help asap t5.Test scores overall have a mean of 1017 and s = 207. If a college wants to admit only the top 30% of those, what score would they use as the minimum required? (Round to the appropriate whole number score). The would admit scores of ___________and above.A data set contains the observations 7,4,2,3,1. Find ( Σx)^2
- Two human traits controlled by a single gene are the ability to roll one’s tongue and whether one’s ear lobes are free or attached to the neck. Genetic theory says that people will have neither one, one, or both of these traits in the ratio 1:3:3:9 (1/16—attached, noncurling; 3/16—attached, curling; 3/16—free, noncurling; 9/16— free, curling). A biology class of 122 students collected these data: ear lobes, tongue observed count attached, noncurling 10 attached, curling 22 free, noncurling 31 free, curling 59 Are these data consistent with the genetic theory? State appropriate hypotheses and identify the appropriate test. Assuming these data are independent, how do you know if this sample is big enough? Calculate the test statistic and p-value. Write a meaningful conclusion.How do we get the P value of one tailed and two tailed without using the excel?The first test a doctor would order to determine whether a person is infected with HIV (the virus that causes AIDS) is the ELISA test. It detects antibodies and antigens for HIV. A study in Statistical Science by J. Gastwirth estimated that, if the person is actually infected with HIV, this test produces a positive result 97.7% of the time. If a person is not infected with HIV, the test result is negative 92.6% of the time. According the the US Centers for Disease Control (CDC), an estimated 1.1 million Americans out of a population of 321 million were infected with HIV in 2015. Using the information above, determine the probability that a randomly selected person whose ELISA test is positive actually is infected with HIV? a. What is the probability that a randomly selected American is infected with HIV? b. Using the answer to part (a) and the conditional probabilities of positive and negative ELISA test results, fill out the contingency table below: ELISA Test Result…
- Consider the following data. 0, – 11, – 11, –11, –9, 0, 0 | Copy Data Step 1 of 3: Determine the mean of the given data.T-Mobile Wi-Fi ? I 9:38 AM • 46% Done 7 of 8 EX TU a FOU | FOU C student.desmos.com/activitybuider/student 608tfadb08264d0cbd11db92escreenld=befe1560-90f5-4e82-8124-d88afBaa62ac IGG G + (Update E Apps a OnCourse Connec. Clara Destiny sho. S Employmet Center ngn Sasaien Expration.. b Seling Assce ate.. 9 Signin P view Portrait Proo. O Nursing: Tradition. = End of Unit IV Assessment Destiny Oloegtu 8 of 10 Next > Question 7 A cell phone company selects 12 different stores in similar markets to advertise a new phone. Seven of these are randomly chosen to use an interactive digital display, and 5 other stores are randomly chosen to use a cardboard display. The company wants to know if the stores with the interactive digital displays are selling more phones than the stores with the cardboard displays. The table shows the number of the new phones sold at each of the storos during one weak. Find the difference in moan number of new phones sold at the stores using the interactive display and…Answer this question
- 1 Find Karl Pearson's coefficient of Skewness from the data: 1, 5, 4, 6, 4, 10Darts A student interested in improving her dart-throwingtechnique designs an experiment to test 4 differentstances to see whether they affect her accuracy. Afterwarming up for several minutes, she randomizes theorder of the 4 stances, throws a dart at a target using each stance, and measures the distance of the dart in centime-ters from the center of the bull’s-eye. She replicates this procedure 10 times. After analyzing the data she reportsthat the F-ratio is 1.41.a) What are the null and alternative hypotheses?b) How many degrees of freedom does the treatmentsum of squares have? How about the error sumof squares?c) What would you conclude?d) What else about the data would you like to see in orderto check the assumptions and conditions?e) If your conclusion in part c is wrong, what type oferror have you made?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. The researchers will use a chi-square test for homogeneity to analyze the findings. Hatching status Yes No Total Cold 16 11 27 Water Temperature Neutral Hot 38 75 18 56 104 Total 129 58 187 Which of the following is false? All of the conditions are met for conducting a chi- square test for homogeneity. The data came from 3 groups in a randomized experiment. All expected counts are at least 5. The 10% condition is met. The 10% condition is not needed because the eggs were not randomly selected from the population. Incorrect
