Hello, An item is rated on a scale of 0 to 3 with 0 being no signs of symptoms  and 3 being the most severe. Is this item categorical or continuous? Is a total score a continuous or categorical measure?

Q: A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage u…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Investigators wished to study whether pregnant women over the age of 42 were more likely to suffer…

A: The given data is as follows:Population mean, Sample size, Sample mean, Sample standard deviation,

Q: Researchers in a statistics course at a Texas college wanted to investigate the optimism in…

A: Given that, The objective of the research study was to investigate the optimism in receiving a job…

Q: cates health problems for the infant. The mean birth weight for children born in a certain country…

A: Given Weight=2500 Mean weight=3494 Standard deviation=490

Q: Does this statement make sense or not? our study measured the birth weights and incidents of…

A: Here we want to Know that the given statement make sense or not.

Q: You are told that your IQ scores falls at the 79th percentile.  What conclusion could you make about…

A: Percentiles: If the elements in the data set are arranged in ascending order of magnitude, then the…

Q: What can teachers do to alleviate statistics anxiety in their students? To explore this question,…

A: We have given that the mean anxiety score for students in every form of class that is formal or…

Q: Almost all medical schools in the United States require students to take the Medical College…

A: From the provided information, Mean (µ) = 500.0 Standard deviation (σ) = 10.6 Let X be a random…

Q: When would it be appropriate to use a histogram as opposed to a scattergram?

A: Given information: It is provided with two diagrams or graphs or plots: histogram and scatter…

Q: The mean is cosidered to be the "balance point" for a distribution becuase exactly half of the…

A: The mean is considered to be the "balance point" for a distribution because exactly half of the…

Q: You are a bank manager and you want to secure a raise for your bank tellers. The board of trustees…

A: In order to determine whether the average number of customers served by the teller per day is…

Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

A: We have to find conclusion from given solution.

Q: World Wide Web has a subsection designed to assess the "honesty" of the test-taker. You are…

A: Population mean=1148Sample mean=144Standard deviation =25 We have to finda...Null and Alternative…

Q: One personality test available on the World Wide Web has a subsection designed to assess the…

A: We have given that Mean(µ) = 140 Sample mean (x̅) = 134 Standard deviations (s) = 28

Q: Do You Find Solitude Distressing? "For many people, being left alone with their thoughts is a most…

A: Here, the number of college students those who were asked to hand over their cell phones and sit…

Q: tor for a medical assistance program wishes to test the hypothesis that her students score higher…

A: As the population standard deviation is not known, we will use a t-test. The null and alternative…

Q: A school counselor randomly selects a sample of 30 students to investigate the impact of a behavior…

A: Solution-:A school counselor randomly selects a sample of 30 students to investigate the impact of a…

Q: Researchers conducted a study to understand the effect of gender on statistics anxiety. They believe…

A: Given, we have two samples males and females.

Q: One personality test available on the World Wide Web has a subsection designed to assess the…

A: Given that  Suppose the true mean score among the general population on the subsection is 14. Fill…

Q: Suppose that a test for presence of a disease is 87.5% accurate. Within a sample of 3200 patients,…

A: (1)   From the given information,   The incidence rate of disease = 14% The accuracy of test =…

Q: You want to compare the performance on a learning task of a group of 20 subjects who have been given…

A: Introduction: Denote μ as the true average number of correct responses by those who under Drug P.…

Q: A famous study found that once orchestras switched to blind auditions, the number of women hired by…

A: Introduction: It has been observed that the number of women hired by orchestras increased when the…

Q: When statisticians use the phrase “inferential statistics”, what is the word inferential referring…

A: Here, we have to discus when and why statisticians use inferential statistics.

Q: Past studies have indicated that the percentage of smokers was estimated to be about 34%. Given the…

A: Given,Past studies have indicated that the percentage of smokers was estimated to be about 34%. That…

Q: c. For which group is a birth weight of 2500 grams more common? Explain what that implies. Unusual…

A: The given z-scores are z=-2.03,z=-0.27.

Q: The correlation between mean 2015 Mathematics SAT scores and mean 2015 Writing SAT scores for all 50…

A: Given information: For all 50 states and the District of Columbia, the correlation between the mean…

Q: In your opinion, what are the advantages and disadvantages to using self-reports for gathering data…

A: Advantages of using self-reports for gathering data on physical activities: Self-reports are…

Q: The manufacturer claims that your new car gets 28 mpg on the highway. You suspect that the mpg is…

A:

Q: in how you determined your findings. How many children scored lower than Emily? How many children…

A: The standard normal variate of the normal distribution is continuous and follows that z~N(0,1). The…

Q: A pharmaceutical scientist is testing a drug if it has any effect on helping students improve their…

A:

Q: What does it mean when a score is in the tail of a distribution?

A: The distribution in statistics or probability is the shape in which the data behaves when plotted.…

Q: Week 3 Please provide solutions and steps in an excel spreadsheet Diastolic Blood pressure are…

A: Let X be the diastolic blood pressure. X follows normal distribution with mean of 85 and standard…

Q: A social psychologist recently developed a childhood-memories test that is intended to measure how…

A: Hypothesis,  H0: The mean score is u= 60 H1: The mean score is not 60. u=! 60 Given that, Mean, x̄=…

Q: time on viewing cellphone a categorical or quantitative variable?

A: Given that  Time on viewing cellphone

Q: A histological test for cancer has sensitivity, specificity, positive predictivity, and negative…

A: To find, Which of the four indicators would you use to reassure a patient that the positive result…

Q: A social psychologist recently developed a childhood-memories test that is intended to measure how…

A: The hypothesize mean is 60.

Q: psychologist wanted to know if students in her class were more likely to cheat if they were low…

A: ANSWER:After reviewing the data set, we need to determine whether the observed patterns support or…

Q: A psychological study wants to analyze the relationship between anxiety and binge drinking; a…

A: Chi-square independence test: The chi-square is a non-parametric test which is used for comparing…

Q: If you wanted to determine whether mean levels of blood glucose were different according to gender…

A:

Q: If Ted scores in the first quartile on his math test, that means he scored better than most students…

A:

Q: This problem is fill in the blank. Just choose the correct answers. Thank you for your help   A…

A: Hypothesis: A statement or assertion about a population parameter is known as Hypothesis. Null…

Q: A study was conducted to determine the proportion of people who dream in blaCk and white Instead of…

A: Two sample proportion test: Two sample proportion test is used to test the significance difference…