The maker of a certain brand of cola drink wants to know if majority of the adults (18 years old and above) that patronize its cola favor the newly released unconventional ("weird") commercial of the cola. A sample of 500 adults that regularly drink this brand of cola was asked the question "Do you favor the newly released unconventional commercial of our cola?" and 270 said yes. What is the computed value of the test statistic? (final answer to 3 decimal places) Do the data provide sufficient evidence that majority of the adults who patronize the cola brand favor the newly released unconventional commercial at the 0.05 level of significance? (choose Yes or No)

Q: Suppose we collect sample data to test the claim that "the incidence of cancer differs between women…

A: Decision rule: If p-value ≤ α, then reject the null hypothesis. Otherwise, fail to reject the null…

Q: Hello, I need help with sign tests and how to find the test statistic and p-value.

A: A nonparametric test is a hypothesis test that does not require any specific conditions concerning…

Q: A new treatment for a certain disease is claimed to be effective in more than 80 % of cases . To…

A: In question, Given A new treatment for a certain disease is claimed to be effective in more than 80…

Q: Which null hypothesis could be tested using a Proportion Test?

A: Here use basic of null and alternative hypothesis

Q: A person is interested in studying the amount of time (in minutes) people spend on social media in…

A: Given, A person is interested in studying the amount of time (in minutes) people spend on social…

Q: What would be the sample variance and standard deviation for a sample of 8 observations with the…

A: The sample variance is the average of the squared deviations of the observations from their mean.…

Q: 7.38 Teaching descriptive statistics. A study compared five different methods for teaching…

A: In the given case more than two means are required to be compared for which we can use a one-way…

Q: Suppose you plan to take a survey of Math&146 students asked how many miles they commute from their…

A: Given,Confidence Interval = 95%ME= Margin of Error =1.5σ=Population Standard Deviation=5.3

Q: In 2005, Health Canada claimed that 16.6% of Canadian adults are obese. A researcher wanted to check…

A: It is a two tailed test.

Q: A political analyst believes that a senator's recent decision to support a bill resulted in a drop…

A: The given data is as follows: Approval Rating Before (Percent)Approval Rating After…

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

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: The television station ABC wants to determine whether men and women watch the same amount of…

A: Given Information: Claim: men and women watch the same amount of television on average per day. The…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: From the provided information, Sample size (n) = 54 Out of which 35 involved an intoxicated driver.…

Q: Prof. Duh Vid, brother and co faculty of Prof. Kho Vid, uses blended learning in his classes and…

A: Please note that as per our guidelines if multiple subparts are there in a question we can answer…

Q: What type of statistic test would I perform for this questions, Is there a relationship between…

A: Chi-square test:   A single simple random sampling is done with each individual being classified…

Q: The work week for adults in the US that work full time is normally distributed with a mean of 47…

A: Introduction: Denote μ as the true mean time worked by an employee at start-up companies, in a work…

Q: (a) What are the null hypothesis H. and the alternative hypothesis H, that should be used for μ the…

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for…

Q: What does it mean to have a positively or negatively skewed result to a research study? What are…

A: The Skewness of any distribution is the measure of symmetry of the distribution. It tells the…

Q: There 39 arrest last month and the police files said 22 were malea aged 15-34 years. Use 5% level of…

A: Note: Hey there! Thank you for the question. As you have posted two independent questions, according…

Q: A college trying to determine if there is a significant difference in the mean GMAT score of…

A: Given data: Business Liberal Arts Sciences 575 562 601 590 578 600 585 584 584 588 570…

Q: The work week for adults in the US that work full time is normally distributed with a mean of 47…

A: Solution: n= 12 Sample size  μ=47 Population Mean  ∑x=622x=∑xn=62212=51.8333 Sample…

Q: Do male and female college students have the same distribution of living arrangements? Use a level…

A: Given Information:   Dormitory Apartment Other Total Male 21 42 58 121 Female 26 35 52 113…

Q: 3) A sample of 10 students scored the following grades: 15, 19, 17, 39, 33, 20, 18, 37, 31, 35.…

A: 3) i) To find the median we arrange the data first  15   17   18   19   20   31   33   35   37   39…

Q: Table 1 summarizes the demographic and baseline data. Since two independent groups were included,…

A: Given information: The researcher is specifically interested to study the differences in age…

Q: From the given data, 19, 21,25,16,17,14,21, and the population (u) are 20 months, test the…

A: Given that  Population mean μ=20 Sample size n =7 Level of significance =0.01

Q: The work week for adults in the US that work full time is normally distributed with a mean of 47…

A: Given data: Population mean = 47 Sample size  = 12 Significance level  = 0.05

Q: It is believed that from among senior high school students, 15% would like to pursue engineering…

A: It is believed that from among senior high school students, 15% would like to pursue engineering…

Q: Explain how to find the 95% confidence interval for the mean by hand using the following data set…

A: For the given sample, x¯=59.05, from the excel function, =AVERAGE(J2:J21)s=4.6394, from the excel…

Q: The test statistic is correct, but the p-value is wrong.

A: Use Excel function "=NORM.S.DIST(2.45,TRUE)", to obtain the p-value.

Q: What is an appropriate statistic to use for whether race/ethnicity (white, person of color) affects…

A: Test is that whether race/ethnicity affects whether or not people feel safe in their neighborhood.

Q: survey of  8  adults employed full-time was taken. Here are their reported numbers of hours worked…

A:

Q: In 2005, Health Canada claimed that 16.8% of Canadian adults are obese. A researcher wanted to check…

A: Here we need to find the value of the test statistic. Given p=0.168 and sample proportion phat=0.12

Q: What is the conclusion? A recent survey done by the Philippine Housing Authority found that 35% of…

A: The hypotheses are given below: Null hypothesis: H0:p=0.35 Alternative hypothesis: H1:p≠0.35 Since…

Q: The work week for adults in the US that work full time is normally distributed with a mean of 47…

A:

Q: A physician is interested to determine if the mean length of waiting time to conceive (in months) of…

A: Independent samples: Two samples are said to be independent when observations in one sample do not…

Q: Suppose that Sandy is an analyst for the bicyling industry and wants to estimate the asking price of…

A: n=10,X¯=659.87,s=197.02,α=0.05

Q: A study of teenage suicide included a sample of 123 girls and 96 boys between ages of 12 and 16…

A: From the provided information, Total girls = 123 Total boys = 96

Q: Can you think of any flaws in the One-Sample Z-Test for Mean?

A: Introduction: Suppose the true, unknown mean of a population of interest is μ.

Q: Suppose that 87 randomly selected male college students and 95 randomly selected female college…

A: Given information:   Dormitory Apartment Other Total Male 37 45 5 87 Female 38 37 20 95…

Q: Students in the senior capstone course (N=36) at Central State University took the Political Science…

A: 1.   Suppose μ is the true mean scores.

Q: Does having a non-significant P-value means that the means of the sample will be the same? explain

A: The hypotheses for the means is constructed as: H0: The means of the sample will be the same. H1:…