Heat resistance in rice, continued. Excercise 21.2 investigated a genetic model oh heat resistance in rice plants. Software gives a P-value of 0.397. Interpret this result. Can you conclude that the distribution of heat-resistant phenotypes in F2 follows a dominant-recessive model (75%~ 25%)?
Q: FIV (feline immunodeficiency virus) attacks a cat's immune system causing FAIDS (feline acquired…
A: Given Information: The percentage of cats with FIV test positive is 94.7% and 96.1% of cats without…
Q: emale undergraduates in randomized groups of 21 took part in a self-esteem study. The study measured…
A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…
Q: Sex and violence. Does the content of a television pro-gram affect viewers’ memory of the products…
A: Examine whether the content advertised in the television program for commercial products affects the…
Q: Subject Treatmen Gender Fam-Hist Age BP-Before-Exp BP-After-Exp D1 1 F PS 65 103.3 80.5 1 F 1 M D2 N…
A: A data can be raw or grouped, with some pro and cons associated with both of them. The raw data has…
Q: An investigation was carried out to study possible consequences of the high incidence of head…
A: The mean of the sample mean is 30.1809. The test is to check whether there is sufficient evidence to…
Q: Kava is a beverage or extract that is made from Piper methysticum, a plant native to the western…
A: It is given that: p^1=0.5299, n1=402p^2=0.2322, n2=521
Q: To see how much difference time of day made on the speed at which he could download files, a college…
A:
Q: You are investigating the role of physical activity on heart disease and hypothesize that physical…
A: Introduction: It is required to choose the correct option.
Q: The National Survey of Family Growth conducted by the Centers for Disease Control gathers…
A: The confidence interval for population mean is computed by , where ME is the margin of error. When…
Q: You are conducting a study of three types of feed supplements for cattle to test their effectiveness…
A: The objective of this question is to calculate the between-group sum of squares (SS_between) in a…
Q: 1. Researchers are interested if the distribution of values for the change in HB (Hemoglobin)…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A study of 20 worldwide financial institutions showed the correlation between their assets and…
A: The question is about testing of popl. correlation coefficient Given : No. of worldwide financial…
Q: 2.141 Blond hair types in the Southwest Pacific. A mutation of a pigmentation gene is theorized to…
A: Introduction: It is required to identify any outliers from the graph, and to state the genotypes for…
Q: A researcher uncovers that there is a significant interaction between the factor of marital status…
A: Test statistic, F The degree of freedom values are, df treatment = k-1 = 2-1 = 1 df within = N-k =…
Q: In Hong Kong, some employers claim that they are willing to offer better starting salaries for those…
A: We know that, Association means the one variable is related in some way to another variable. There…
Q: Women: 53 patients had high blood pressure Required: Test Value Only the final answer should be…
A: Given : n1= 168 n2= 168 significance level, 0.05 sample proportion p̂1…
Q: An epidemiologist who is working in Capricorn Department of Health investigated the occurrence of…
A: One-Proportion z test (Left-tailed test) Here the given values are The total cases are n=10000…
Q: In a study reported in the American Journal of Clinical Nutrition, young men who drank fat-free milk…
A: Given, In a study reported in the American Journal of Clinical Nutrition, young men who drank…
Q: IL-6 is a cytokine released as an immune response to infection. Elevated IL-6 is suggested to be…
A: The pooled variance is, Critical values: Using the z-table, the critical value at 1% level of…
Q: 2. Various studies done by Ms Makhalemele from SMU Chemistry department have shown the benefits of…
A: Solution : Pooled Standard Deviation = 18.42
Q: A researcher conducts an independent-measures study examining how the brain chemical serotonin is…
A: A. Null and alternate hypotheses: The investigator is specifically interested to test whether the…
Q: A quality control manager has concerns about the occurrence of defects on a component assembly used…
A: Given that We have to test hypothesis for the claim that the types of defects are independent of…
Q: One thousand (1000) elderly males and 2500 elderly females were randomly selected for a dementia…
A: It is given that 1000 elderly males and 2500 elderly females were randomly selected for a dementia…
Q: Three diets for hamsters were tested for differences in weight gain after a specified periods of…
A: Solution Conduct this test using a one-factor ANOVA and a randomized block ANOVA. Anova Table…
Q: Preventable chronic diseases are increasing rapidly in some regions, particularly diabetes. Shown…
A:
Q: Are these data good evidence that on average the E. coli levels in these swimming areas were safe?…
A: Let μ be the population mean coliform bacteria. Given that, Sample size (n) = 24 Population mean (μ)…
Q: A small study is conducted to investigate the effect of a nutritional supplement on toatl body…
A: Given: A small study is conducted based on investigating the effect of a nutritional supplement on…
Q: Insurance companies track life expectancy information to assist in determining the cost of life…
A: Note: Hi! Thank you for the question, As per the honor code, we are allowed to answer three…
Q: Shift Morning Evening Overnight Total Defect Type A 43 17 14 74 Defect Type B 36 49 22 42 127 Defect…
A: Let the null hypothesis be, H0:defect type and shift of production are independent.H1: defect type…
Q: FASTPlaqueTB is a diagnostic test for the presence of tuberculosis bacilli. In a community, for…
A: Let Events, A : Event that the people in the community have the tuberculosis bacilli. Ac : Event…
Q: Preventable chronic diseases are increasing rapidly in some regions, particularly diabetes. Shown…
A: Given data: Significance level = 1 % To find: Null and alternative hypotheses
Q: Miller Inc. has decided to use a p-Chart with 3-sigma control limits to monitor the proportion of…
A: We are decided to use a p-chart with 3 sigma control limits to monitor the proportion of defective…
Q: Whirling disease is a deadly disease that affects trout in Montana riversIn a follow-up to a 2006…
A: The relative risk of whirling disease for rainbow trout compared to brown trout can be calculated as…
Q: of LO %24 2. Based on their records, a hospital claims that the proportion, p, of full-term babies…
A: For the given data Perform z test for one proportion test
Q: Suppose that in a sample of 30 patients, the variance of a randomly selected person having a genetic…
A: From the provided information, Sample size (n) = 30 Variance (σ2) = np (1-p) = 3.7
Q: Women athletes at a certain university have a long-term graduation rate of 67%.Over the past several…
A: a) The level of significance is 0.10. b) State the null and alternative hypotheses: The claim is…
Q: A researcher uncovers that there is a significant interaction between the factor of marital status…
A: We have, N = 12 k = 2 dfbet = k-1 = 2-1 =1 dfwithin = N-k = 12-2 = 10 The sum of squares due to…
Q: An epidemiologist found five cases of “big toe cancer” in the Yukon Territory. Because there were…
A: Note: Since we are authorized to answer only up to 3 subparts, we are answering first three…
Q: Researchers recruited 1000 10- and 20-year-ol to participate in a study about age differences ir…
A: Given, 10 yrs old 20 yrs old Violent games 35 25 Non violent games 25 45
Q: A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo.…
A: Given Information : A clinical trial is conducted comparing a new pain reliever for arthritis to a…
Q: IL-6 is a cytokine released as an immune response to infection. Elevated IL-6 is suggested to be…
A: The power is, power = 1-β 0.80=1-β β=0.20 The value of pooled variance is,z0.01/2=2.576…
Q: 2. 90 male volunteers are randomly assigned to three different trealment programs designed to…
A: Box-plot is one of the methods of graphical representation of data. Box-plot is used to know about…
Q: Researchers investigate how the presence of cell phones influence the quality of human interaction.…
A: Given information: Researchers are interested to study the effect of the cell phones quality of…
21.6 Heat resistance in rice, continued. Excercise 21.2 investigated a genetic model oh heat resistance in rice plants. Software gives a P-value of 0.397. Interpret this result. Can you conclude that the distribution of heat-resistant phenotypes in F2 follows a dominant-recessive model (75%~ 25%)?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Which uses a group of people with different exposures and follows them over time? Cohort Cross-sectional Quasi-experimental Case-ControlTardigrades, or water bears, are a type of micro-animal famous for their resilience. In examining the effects of radiation on arganisms, an expert claimed that the amount of gamma radiation needed to sterilize a colany of tardigrades no longer has a mean of 1200 Gy (grays). (For comparison, humans cannot withstand more than 10 Gy.) A study was conducted on a sample of 21 randomly selected tardigrade colonies, finding that the amount of gamma radiation needed to sterilize a colony had a sample mean af 1225 Gy, with a sample standard deviation of 65 Gy. Assume that the population of amounts of gamma radiation needed to sterilize a colony of tardigrades is approximately normally distributed. Complete the parts below to perform a hypothesis test to see if there is enough evidence, at the 0.10 level af significance, to support the claim that H, the mean amount of gamma radiation needed to sterilize a colony of tardigrades, is nat equal to 1200 Gy. (a) State the null hypothesis and the…ester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed an increase in absenteeism that he thinks is related to the general health of the employees. Four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. To evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the six months following the exercise program. Below are the results. Employee Before After 1 6 5 2 6 2 3 7 1 4 7 3 5 4 3 6 3 6 7 5 3 8 6 7 At the 0.05 significance level, can he conclude that the number of absences has declined? Estimate the p-value. State the decision rule for 0.05 significance level. (Round your answer to 3 decimal places.) Compute the test statistic. (Round your answer to 3 decimal places.)
- A researcher is interested in seeing what effect a particular type of drug has on an intelligence test, depending on the time of day that the pill is administered. The researcher computes a two-way ANOVA and plots the resulting cell means on the graph at right. Assuming that any obvious differences are statistically significant Is there a main effect for type of pill? Is there a main effect for time of day? Is there an interaction? 4. Describe the findings of the study in everyday termsA manufacturer ran an experiment to compare the wearing qualities of two different types of automobile tires, A and B. In the experiment, a tire of Type A and one of the type B were randomly assigned and mounted on the rear wheels of each of five cars. the cars were then operated for x miles and the amount of tire wear was recorded (higher number represents more wear). Is there sufficient evidence to conclude that there is a difference in the average wear? Use 0.05 level of significance. Tire A 10.6 9.8 12.3 9.7 8.8 Tire B 10.2 9.4 11.8 9.1 8.3Researchers examine the association between the fluoridation of water and the prevention of tooth decay by comparing the prevalence of tooth decay in countries that have fluoridated water with the prevalence in countries that do not. Is this a randomized experiment or an observational study? Assume that tooth decay was seen to be less common in countries with fluoridated water. Could this result be due to confounding?
- all 12% 1:19 Y ☺ Lab Assignment #8_-150... ANOVA An experiment was conducted to determine if motivational techniques in management significantly impacted employee stress levels compared to no intervention. An employee survey was given to three groups: one group under a manager who started using a transformational motivation technique, one group under a manager who began using a transformational motivation technique, and then a control group with no new technique used. Stress levels were self-reported by the employees as shown below. Use alpha = 0.05 Transformational Transactional Control 2 6. 3 3 1. What is your null hypothesis? 2. What is your alternative hypothesis? After running the single factor analysis of variance on the data, what is the p-value for between 3. groups? Using the 95% significance level, is there a significance difference in stress levels between the three 4. groups? 5. Do you reject or accept the null hypothesis? Yes No Reject Accept IIIt has been found that 25.1% of men (Group 1) 20 years and older suffer from hypertension (high blood pressure) and 33.9% of women (Group 2) are hypertensive. A random sample of 164 of each gender was selected from recent hospital records, and the following results were obtained. Can you conclude that a higher percentage of women have high blood pressure? Use =0.05. Men: 42 patients had high blood pressure Women: 52 patients had high blood pressure Required: Test Value Only the final answer should be rounded-off to TWO decimal places.Productivity is the key driver of wages and one of the most importantdeterminants of living standards. The British Chambers of Commercecommissioned research into understanding whether labour productivity in theautomotive manufacturing sector in England and Ireland were the same ordifferent. The researchers collected data on a random sample of 8 firms inEngland and 4 in Ireland and recorded productivity in units of value added (£)per hour. It is assumed that firm-level productivity has a normal distribution.The following data were collected:Ireland 47 56 43 68England 39 50 39 45 50 43 35 43(i) Set up appropriate null and alternative hypotheses and conduct a test ofthe hypotheses of equal mean productivity in Ireland and England at 5 percent significance level under the assumption of unknown but equalpopulation variances. Provide as much detail as possible on yourprocedures. Clearly show all your steps in testing and state your decision.Discuss the economic implications of your findings.…
- Female undergraduates in randomized groups of 15 took part in a self-esteem study. The study measured an index of self-esteem from the point of view of competence, social acceptance, and physical attractiveness. Let x1, x2, and x3 be random variables representing the measure of self-esteem through x1 (competence), x2 (social acceptance), and x3 (attractiveness). Higher index values mean a more positive influence on self- esteem. Variable Sample Mean Standard Deviation Population Size Мean 15 19.48 2.92 X1 X2 X3 (a) Find a 90% confidence interval for u1 - 42. (Round your answers to two decimal places.) lower limit 15 19.90 3.98 H2 15 17.42 3.60 upper limit (b) Find a 90% confidence interval for u1 - 43. (Round your answers to two decimal places.) lower limit upper limit (c) Find a 90% confidence interval for u2 - 13. (Round your answers to two decimal places.) lower limit upper limitFind the value of the test statistic and find the 5% critical valueA team of epidemiologists at the Mayo Clinic wanted to find whether there is an association between obesity and cardiovascular disease (CVD). They conducted a prospective cohort study following obese and non-obese individuals who were free of CVD at the beginning of study for five years. The investigators were also interested in assessing age as a potential confounder, effect modifier, or both. Use the data below to answer the accompanying questions. CVD No CVD Total Obese 10 90 100 Not Obese 35 465 500 Total 45 555 600 CVD No CVD Total Obese 36 164 200 Not Obese 25 175 200 Total 61 339 400 1. Compute the appropriate measure of association for those who were less than age 50. 2. Compute the appropriate measure of association for those who were older or equal to age 50. 3. Compute the crude measure of association? 4. List three attributes that age must satisfy before it could…