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The top food snacks consumed by adults aged 18-54 are gum, chocolate candy, fresh fruit, potato chips, breath mints/candy, Ice cream, nuts, cookies, bars, yogurt, and crackers. Out of a random sample of 25 men, 15 ranked fresh fruit in their top five snack choices. Out of a random sample of 32 women, 22 ranked fresh fruit in their top five sack choices. Is there a difference in the proportion of men and women who rank fresh fruit in their top five list of snacks?
(a)State the hypotheses and a decision rule for α₌.10.
(b)Calculate the sample proportions.
(c) Find the test statistic and its p-value. What is your conclusion?
(d) Is normality assured?
Can you can tell the difference between coke and pepsi in a blind taste test? Most people say they can and have a preference for one brand or another.
Using Analysis of Variance (ANOVA) test at 5% level if there are important differences in mean sales calls made across the three branches.
Suppose that a certain college class contains 54 students. Of these, 34 are sophomores, 35 are psychology majors, and 7 are neither. A student is selected at random from the class.
At a large commercial bakery, one of the measures familiar with evaluate employees is the number of broken cookies per 1000 produced. The quality control department wants to determine if there is a relationship between years of experience and bro..
A journal polled its readers to determine the proportion of wives who, if given a second chance, would marry their husband again.
A manufacturer of batteries for "kids' toys" wishes to investigate the length of time a battery will last. Tests results on a sample of 10 batteries indicated a sample mean of 5.67 and a sample standard deviation of 0.57.
What is the probability that a subscriber rented a car during the past 12 month for business or personal reasons?
Elizabeth Bailey is the owner and general manager of Princess Brides, which provides a wedding planning service in Southwest Louisiana.
Compute the z score corresponding to each of the following values of x. Compute the z score corresponding to each of the following values of x
A Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. The factors were tested at each of the following levels in hopes of improving engine horse..
Arbitrarily choose someone from sample. Determine the probability that they are Jewish and Democrat?
Find out the operating characteristics for this system.
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