4. A genetic study conducted in 2003 indicated that up to 25% of men in one...
4. A genetic study conducted in 2003 indicated that up to 25% of men in one small province of Iran are direct descendants of one individual (historians and vampologists have speculated that it is most likely Nandor the Relentless). Suppose that we select 15 men at random from this province of Iran and observe whether or not this specific Y chromosome sequence occurs in their DNA. We consider a”success” to be an instance in which the individual is a direct descendant of Nandor the Relentless.
(a) What is the probability that there were more than two direct descendants but no more than 6 in this sample?
(b) What is the probability that there were more than 5 direct descendants in our sample?
(c) If we selected 15 men at random from Iran on average how many of them would be direct descendants of Nandor the Relentless (round to two decimal places in your answer).
Homework Answers
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4. A genetic study conducted in 2003 indicated that up to 25% of
men in one...
explain the process thank you 13) 13) A study was conducted to determine lf the salaries...
explain the process thank you
13) 13) A study was conducted to determine lf the salaries of librarians hom two neighboring cities were equal. A sample of 15 lbrarians from each clty was randomly selected. The mean from the first clty was $28,900 wlth a standard devlation of $2300. The mean from the second city was $30,300 witha standard deviation of$2100. Construct a 95% conndence Interval for μ1- A) (-2054, 238) B) (-4081, 597) C) (-3125, 325) D) (-2871, 567)...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Ho: p= .50 H:p>.50 (a) What is the z-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Hop=.50 H.:P > .50 (a) What is the 2-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
Question 14 (1 point) In a consumer research study, several Meijer and Walmart stores were surveyed...
Question 14 (1 point) In a consumer research study, several Meijer and Walmart stores were surveyed at random and the average basket price was recorded for each. You wish to determine if the average basket price for Meijer is less than the average basket price for Walmart. It was found that the average basket price for 24 randomly chosen Meijer stores (group 1) was $51.574 with a standard deviation of $11.9675. Similarly, a random sample of 15 Walmart stores (group...
Two researchers conducted a study in which two groups of students were asked to answer 42...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 25.5 with a standard deviation...
In a History with multiple (4) choice questions, a correct answer gives one point while there...
In a History with multiple (4) choice questions, a correct answer gives one point while there is a 1/4 of the point penalty for a wrong answer. Having no time to answer the last ten questions, a student decides to mark them randomly. What do you expect? Select one: a. He neither gains nor loses any points b. He loses some points c. He gains some points d. Cannot be answered with the given information If the mean of a...
Question 1: A survey was conducted to investigate the severity of rodent problems in egg and...
Question 1: A survey was conducted to investigate the severity of rodent problems in egg and poultry operations. A random sample of operators was selected, and the operators were classified according to the type of operation and the extent of the rodent population. A total of 78 egg operators and 53 turkey operators were classified and the summary information is: One reviewer of the study suggested that there may be a problem with the study because results from small operators...
In *ONLY* 15 words or less, state the method the authors used for “developing" the items on the G...
In *ONLY* 15 words or less, state the method the authors
used for “developing" the items on the Grit survey?
Study 1 Study 1 was a cross-sectional study for which the major purpose was to develop and validate a self-report measure of grit in a large sample of adults aged 25 years or older. The predictive validity of grit was assessed by its association with higher levels of lifetime schooling among individuals of identical age sity (e.g., "I have overcome...
Summarize the experiment(s) and answer the following question: Why is this a correlational study and not...
Summarize the experiment(s) and answer the following question:
Why is this a correlational study and not an experiment (hint: why
can't researchers manipulate the independent variable here)? What
do you think of their measure of charisma and social skills? Why do
you find it satisfactory or unsatisfactory?
Read the attached article: link=
Hippel et al. _2016_ - Quick Thinkers are Smooth
Talkers.pdf
the link is also above so can copy and paste it in a internet
browser
the
link is...
Can Dogs Understand Human Cues? EXPLORATION Dogs have been domesticated for about 14,000 years. In that...
Can Dogs Understand Human Cues? EXPLORATION Dogs have been domesticated for about 14,000 years. In that time, have they been able to develop an understanding of human gestures such as pointing or glancing? How about simi lar nonhuman cues? Researchers Udell, Giglio, and Wynne tested a small number of dogs in order to answer these questions. In this exploration, we wll first see whether dogs can understand human gestures as well as nonhuman gestures. To test this, the researchers positioned...
explain the process thank you
13) 13) A study was conducted to determine lf the salaries of librarians hom two neighboring cities were equal. A sample of 15 lbrarians from each clty was randomly selected. The mean from the first clty was $28,900 wlth a standard devlation of $2300. The mean from the second city was $30,300 witha standard deviation of$2100. Construct a 95% conndence Interval for μ1- A) (-2054, 238) B) (-4081, 597) C) (-3125, 325) D) (-2871, 567)...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Ho: p= .50 H:p>.50 (a) What is the z-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Hop=.50 H.:P > .50 (a) What is the 2-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
Question 14 (1 point) In a consumer research study, several Meijer and Walmart stores were surveyed at random and the average basket price was recorded for each. You wish to determine if the average basket price for Meijer is less than the average basket price for Walmart. It was found that the average basket price for 24 randomly chosen Meijer stores (group 1) was $51.574 with a standard deviation of $11.9675. Similarly, a random sample of 15 Walmart stores (group...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 25.5 with a standard deviation...
In *ONLY* 15 words or less, state the method the authors
used for “developing" the items on the Grit survey?
Study 1 Study 1 was a cross-sectional study for which the major purpose was to develop and validate a self-report measure of grit in a large sample of adults aged 25 years or older. The predictive validity of grit was assessed by its association with higher levels of lifetime schooling among individuals of identical age sity (e.g., "I have overcome...
Summarize the experiment(s) and answer the following question:
Why is this a correlational study and not an experiment (hint: why
can't researchers manipulate the independent variable here)? What
do you think of their measure of charisma and social skills? Why do
you find it satisfactory or unsatisfactory?
Read the attached article: link=
Hippel et al. _2016_ - Quick Thinkers are Smooth
Talkers.pdf
the link is also above so can copy and paste it in a internet
browser
the
link is...
Can Dogs Understand Human Cues? EXPLORATION Dogs have been domesticated for about 14,000 years. In that time, have they been able to develop an understanding of human gestures such as pointing or glancing? How about simi lar nonhuman cues? Researchers Udell, Giglio, and Wynne tested a small number of dogs in order to answer these questions. In this exploration, we wll first see whether dogs can understand human gestures as well as nonhuman gestures. To test this, the researchers positioned...
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