13. Priti, a shopkeeper, is studying whether customers' preference for striped or solid-color ties differsby age. She asks 180 customers to indicate their preference, and she records whether eachcustomer is under or over 30 years old. Here is the distribution of responses:StripedSolid-ColorUnder 309040Over 301040Priti conducts a hypothesis test (a = .05) and obtains a value of 35.45 for the test statistic.%3DWhich statistical test did Priti use? Be specific. Why did she use this particular test?What is the critical value of the test statistic in Priti's test?What is the effect size?Report the results in APA style, including the relevant descriptives.

As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....…

Answered: 13. Priti, a shopkeeper, is studying…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I ONLY need help with C. I cannot come up with an answer. Not enough information for me to solve. Thank you. A teacher wishes to know whether the males in his/her class have more conservative attitudes than the females. A questionnaire is distributed assessing attitudes. a. Is this a sampling or a census? b. Is this an observational study or an experiment? c. Are there any possible sources of bias in this study?
← The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. is 2: ? Actress (years) 27 27 Actor (years) 56 35 2 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). View an example In this example, is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: H0 year(s) H₁: H0 year(s) (Type integers or decimals. Do not round.) Identify the test statistic. t=…
A marketer is examining the effectiveness of color scheme on the willingness to subscribe to a user's social media account. She creates three different profiles using three different color schemes: red, blue, and green. Twenty participants are asked to evaluate how much they like each of the profiles using a scale of 1 (do not like) to 5 (like a lot). What statistical procedure should you use to analyze these data? O independent groups t test O correlated groups t test O One Way Between Subjects ANOVA O One Way Repeated Measures ANOVA
5.50 Watching live television. A survey of 442 people aged 18 to 29 revealed that 30% watch live television every day.25 You take a random sample of 20 undergraduates from your university and ask them whether they watch live TV every day. If their rate matches the 30% rate: a. What is the distribution of the number of students who say they watch live television every day? b. What is the distribution of the number of students who say that they do not watch live television every day? c. What is the probability that no more than 2 of the 20 students in your sample say that they watch live television every day?
M&M sweets come in a variety of colours, blue, brown, green, orange, red and yellow. The overall proportions for the colours are: In a sampling study, several bags of M&M were opened, and the following colour counts were obtained Use a 0.05 level of significance and the sample data to test the hypothesis that the overall proportions for the colours are as stated. What is your conclusion? Blue Brown Green Orange Red Yellow 0.24 0.13 0.20 0.16 0.13 0.14 Blue Brown Green Orange Red Yellow 105 72 89 84 70 80
The student population at the state college consists of 60% females and 40% males. A. The college theater department recently staged a production of a modern musical. A researcher recorded the gender of each student entering the theater and found a total of 37 females and 18 males. Is the gender distribution for theatergoers significantly different from the distribution for the general college? Test at the .05 level of significance. B. The same researcher also recorded the gender of each student watching a men’s basketball game in the college gym and found a total of 58 females and 82 males. Is the gender distribution for basketball fans significantly different from the distribution for the general college? Test at the .05 level of significance.
the grade-point averages of 20 college seniors selected at random from a graduating class are as follows:3.2, 1.9, 2.7, 2.4, 2.8, 2.9, 3.8, 3.0, 2.5, 3.3, 1.8, 2.5, 3.7, 2.8, 2.0, 3.2, 2.3, 2.1, 2.5, 1.9. calculate the standard deviation.
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(6) A student surveys some students on campus in the evening and finds that 16 out of 20 of the students she interviewed are part time students. She uses the data to estimate the percentage of all students who are part time. What type of bias is present in her sample?

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