The 94 students in a statistics class are categorized by gender and by year in school. The numbers obtained are displayed in the table. Gender Freshman Sophomore Junior Senior Graduate Total Male 1 2 9 17 2 31 Female 23 17 13 7 3 63 Total 24 19 22 24 5 94 22/94 = 0.234 is a value in a: O marginal distribution. conditional distribution.

The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below. Type of Household Percent of U.S. Households Observed Number of Households in the Community Married with children 26%         96             Married, no children 29%         118             Single parent 9%         37             One person 25%         95             Other (e.g., roommates, siblings) 11%         65             Use a 5% level of significance to test the claim that the distribution of U.S. households fits the Dove Creek distribution. (a) What is the level of significance? State the null and alternate hypotheses. H0: The distributions are the same.H1: The distributions are the same.   H0: The distributions are the same.H1: The distributions are different.       H0: The distributions are different.H1: The distributions are the same.   H0: The distributions are different.H1: The distributions are different. (b) Find the…

The following table shows the distribution of scores on a final elementary statistics examination for a large section of students. 0.12 The cumulative relative frequency for the class 60-70 (i.e. what percentage of students scored 70 or lower) is 0.06 0.57 Classes for Exam Scores 90 and over 80-90 70 - 80 60-70 50 - 60 40 - 50 Under 40 0.43 Number of Students 5 12 40 18 13 6 6

In a scatter plot, each A.individual is represented by two data points B. group mean is represented by two data points C.group mean is represented by a single point D.individual is represented by a single point Reset Selection 7,821 MAR étv AA w FIL 吕口。 00 F4 F6 F7 F8 F9 F10 F2 F3 F5 % & * 4 5 6 7 8 E R

The calorie counts for the 17 poultry brands are129 112 102 106 94 101 97 99 141 113 115 132 86 133 302 146 134a. Find the mean of the data setb. Find the Five-number summary of the data set.c. From part (a) and (b), describe the overall distribution of the data set for anon-statistician employer. For example, do you see any kind of skewness inthe data set? Is there any outlier ? Why?

Construct the cumulative frequency distribution for the given data. Age (years) of Best Actress when award was won 20-29 30-39 40-49 50-59 60-69 70-79 80-89 Frequency 25 34 11 3 7 2 2 Age (years) of Best Actress when award was won Cumulative Frequency Less than 30 Less than 40 Less than 50 Less than 60 Less than 70 Less than 80 Less than 90