Sony would like to test the hypothesis that the average age of a PlayStation user is different from the average age of an Xbox user. A random sample of 32 PlayStation users had an average age of 33.7 years while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.7 and 3.5 years, respectively. Sony would like to set α = 0.05. The p-value for this hypothesis test would be

Q: A random sample of 57 chemists from Washington state shows an average salary of $42635, the…

A: Let μ1 denotes the population mean salary for Washington state, and μ2 denotes the population mean…

Q: The heights of adult men in America are normally distributed, with a mean of 69.7 inches and a…

A:

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: The question is about hypo. testing Given : Popl. mean amount of wireless data used by teenagers ( μ…

Q: Suppose a convenience store near a college campus sells two complementary products, energy drinks…

A: Let, X denotes the number of energy drinks and Y denotes the number of snacks sold per students.…

Q: In a national survey, middle school students report spending 3.1 hours per week on homework. Mr.…

A: μ=3.1n=24α=0.1σ=1.9x=3.4

Q: The National Sleep Foundation surveyed representative samples of adults in six different countries…

A: we have given that  n1=250 ,n2=250 ,xbar1=391 ,xbar2=426 ,s1=20 ,s2=44 alpha=0.05

Q: The speeds of all cars on the tollway was found to be normally distributed with a mean of 63 miles…

A: It is given that that µ=63 mile per hour. Obtain the standard deviation of the speeds of all cars:

Q: health economist does a study on the average life expectancy of every country in Europe.  The…

A: Given, mean life of the country is 81.2 and standard deviation is 3.7. Z-score is 1.2. We will use…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: The objective of the question is to state the null and alternative hypotheses for the test. The null…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: The objective of this question is to test Ella's claim that the average amount of wireless data used…

Q: study of a population showed that​ males' body temperatures are approximately Normally distributed…

A: We have given that the Mean=98.3, Standard deviations=0.60

Q: A health psychologist is interested in the potential effect that a change in career focus can have…

A: We hvae to find  point estimate for the mean systolic blood pressure for divorce lawyers who switch…

Q: Two different species of trees have heights that are approximately normal in distribution.  Tree A…

A: The z-score of a random variable x is defined as follows: z = (x – µ)/σ. Here, µ and σ are the mean…

Q: The concentration of benzene was measured in units of milligrams per liter for a simple random…

A: Let,  μ1 :  the population mean benzene concentration for untreated water and  μ2: the population…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: From the provided information, Sample size (n) = 4 Sample mean (x̄) = 9.2 Sample standard deviation…

Q: According to the historical data, the life expectancy in Egypt is equal to the life expectancy in…

A: Given Information : According to the historical data , the life expectancy in Egypt is equal to the…

Q: The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million…

A: We have given that  Sample sizes n1= 40 , n2= 35  Sample means xbar1= 3.2 , xbar2=1.9  Standard…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: State the null and alternative hypotheses for the test. Fill in the blank below. H0: μ=6:…

Q: obiles? Assume the samples are random and independer dard normal distribution table. dard normal…

A: Let μ1 denote the mean braking distance of automobile A. Let μ2 denote the mean braking distance of…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: The objective of this question is to compute the value of the test statistic for Ella's claim that…

Q: Researchers want to compare the relative effectiveness of two popular diets. They randomly assign…

A:

Q: A certain paper describes a study of the possible cardiovascular benefits of active video games.…

A: Solution: State the hypotheses. Null hypothesis: That is, the mean heart rate after 15 minutes of…

Q: The concentration of benzene was measured in units of milligrams per liter for a simple random…

A:

Q: To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a…

A: Given that  α=0.10That is,α=10%Level of significance =10%

Q: The difference in the Organic Chemistry final exam scores between last semester and three years ago…

A: Given that

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: Given Hypothesized mean = 7 Gb sample mean , x = 6.2 Gb sample standard deviation , s = 1.7 Gb level…

Q: A random sample of 50 wheat producers from the Earth Kingdom are selling their product at an average…

A: From the provided information,

Q: The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million…

A: The sample standard deviations are s1=2 and s2=1.5.

Q: Researchers want to compare the relative effectiveness of two popular diets. They randomly assign…

A: we have given that   There are 200 volunteers in each group.   the Group A had lost on average 7.8…

Q: A statistics instructor gives two different tests to measure students' aptitude for statistics.…

A: We have given that, Mean1 = 22 and standard deviation1 = 5. Mean2 = 71 and standard deviation2 =…

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: In hypothesis testing, we start by stating the null hypothesis (H0) and the alternative hypothesis…

Q: The relationship between birth weight and IQ were studied. 258 subjects with extremely low birth…

A: INTRODUCTION:  LARGE SAMPLE TEST  x1 be the sample mean of the sample taken from the first…

Q: 19.62 of 24 pts Question Help v To compare the dry braking distances from 30 to 0 miles per hour for…

A: Claim is option b i.e mean braking distance is different  for the two makes of machines .

Q: A researcher wanted to know whether losing one night sleep can affect problem solving. A sample of n…

A:

Q: Dr. Shoals predicts that people who walk a mile in moderately high heels will have less back pain…

A: From given : n=27 x¯1=6.75x¯2=3.25SD=3.37

Q: Mason earned a score of 226 on Exam A that had a mean of 250 and a standard deviation of 40. He is…

A: First find the standardised Z score and the make equivalency

Q: You may need to use the appropriate technology to answer this question. Data were collected on the…

A: Given,