7. The probabi Get Homework Help With Chegg Study Chegg.com sample size Aa Aa Suppose an architec...
You may need to use the appropriate technology to answer this question. Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in golf tournaments are shown in the following table. Player First Round Final Round Golfer 1 70 72 Golfer 2 71 72 Golfer 3 70 73 Golfer 4 72 71 Golfer 5 70 69 Golfer 6 67 67 Golfer 7 71 68 Golfer 8 68 73 Golfer 9 67 73 Golfer 10...
The distribution of ages of females in the United States is strongly skewed to the left with a mean of 80.2 years. A random sample of n 20 females is taken from this population and the mean age of the sample is calculated. This is repeated 500 times. Which one of the following best describes the shape of the sampling distribution? 20. Cannot be determined because the standard deviation is unknown. Skewed to the left with a mean of (A)...
6. Rank the following data in increasing order and find the positions and values of both the 22nd percentile and 65thpercentile. Please show all of your work.2 1 6 3 4 7 0 0 0 7 5 87. For the table that follows, answer the following questions:x y1 -1/32 -2/33 -14- Would the correlation between x and y in the table above be positive or negative?- Find the missing value of y in the table.- How would the values of...
A sample of 25 golfers showed that their average score on a particular golf course was 75 with a standard deviation of 6. Answer each of the following (show all work):(A) Find the 95% confidence interval of the mean score for all 25 golfers.(B) Find the 95% confidence interval of the mean score for all golfers if this is a sample of 36 golfers instead of a sample of 25.(C) Which confidence interval is smaller and why? Please show each...
Use SPSS for this exam, be sure to include all the following information to get full credits: (1) null and alternative hypotheses (15%) (2) nameofthe test(15%, explain why you chose it) (3) thetest statistic and its degree offreedom or ANOVAtable(if applicable) (30%! (4) p-value (15%), and (5) scientific conclusion (25%, using 0.05 significance). 1. Ostriches live in hot environments, and they are normally exposed to the sun for long periods Mammals in similar environments have special mechanisms for reducing the...
1) Grade point averages of math majors at a large distanceeducation university are normally distributed with a mean of μ= 2.85 and a standard deviation of σ= .30.If a random sampleof 25 math majors is selected from the university, what is theprobability that that sample mean grade point average willbe?a) either less than 2.709 or more than 2.955?.0494b) at least 2.757.93942) Psychologists estimate that 80% of male drivers, when lostin trying to find a location, continue to drive rather than...
True/FalsePlease indicate if the following statements are true or false.1. The variable of height is an example of a quantitative variable.2. Rating a restaurant by a number of stars is an example of an ordinal level of measurement.3. In a research study, it is always preferable for the researcher to choose his participants as carefully as possible rather than randomly accept samples.4. In the following chart, the height is the independent variable and the age of the tree is the...