What is/are the proportion defective value of the subgroup(s) above the UCL, according to the data below: Subgroup Subgroup Number size n 1 425 2 425 3 425 4 425 5 425 6 425 7 8 9 10 11 12 13 14 15 16 17 18 19 20 425 425 425 425 425 425 425 425 425 425 425 425 425 425 np 3 6 4 6 NNOT MODTSSON ME 12 2 6 7 3 6 10 4 5 11 5 2 3 6 The correct answer MUST be written with decimal POINT (1.2345). The value 1,2345 is wrong!!!. Round the calculations to the 4 digit after the decimal point. Separate the values (if more than one) with comma.
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- 1. Find the class midpoints of the first three classes (20-29,30-39, and 40-49) 2. Is the data displayed in the frequency table approximately normal? Explain your reasoning3. A particular report included the following table classifying 815 fatal bicycle accidents that occurred in a certain year according to the time of day the accident occurred. Time of Day Number of Accidents midnight to 3 a.m. 46 3 a.m. to 6 a.m. 52 6 a.m. to 9 a.m. 85 9 a.m. to noon 72 noon to 3 p.m. 76 3 p.m. to 6 p.m. 157 6 p.m. to 9 p.m. 192 9 p.m. to midnight 135 For purposes of this exercise, assume that these 815 bicycle accidents are a random sample of fatal bicycle accidents. Suppose a safety office proposes that bicycle fatalities are twice as likely to occur between noon and midnight as during midnight to noon and suggests the following hypothesis: Ha: p1 > 1/3, p2>2/3 Ha: p1 ≠1/33, p2=2/3 Ha: p1 =1/3,p2=2/3 Ha: H0 is not true. Ha: p1 >1/3,p2<2/3 x2=______? p-value______? State the conclusion in the problem context. Reject H0. There is convincing evidence to conclude that bicycle fatalities are not twice as likely to…Select the correct answer and write the appropriate letter in the space provided _____ 1. A grouping of data into classes giving the number of observations in each class is called a(an) a bar chart. b. frequency distribution. c. pie chart. d. cumulative frequency distribution. ______ 2. The distance between consecutive lower class limits is called the a. class interval. b. frequency distribution. c. class midpoint. d. class frequency. ______ 3. The class midpoint is a. equal to the number of observations. b. found by adding the lower class limits of two consecutive classes and dividing by 2. c. equal to the class interval. d. all of the above. ______ 4. The number of observations in a particular class is called the a. class interval. b. class frequency. c. frequency distribution. d. none of the above. ______ 5. A bar chart is used most often when a. you want to show frequencies as compared to total observations. b. you want to show…
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- The racial/ethnic diversity of post high school students enrolled at MVCC during the fall 2020 semester is given below. Racial/Ethnic Diversity of Post High School Students Race/Ethnicity Percent* American Indian or Alaska Native 0.4% Asian 5.3% Black or African American 9.6% Hispanic or Latino 9.6% Two or more races 2.8% Native Hawaiian or Pacific Islander <0.1% Non-Resident Alien 0.5% Unknown 1.5% White 70.2% (*Percentages may not total 100 due to rounding) What is the race/ethnicity of the majority of students at MVCC? What total percent of students were either Black or African American or Hispanic or Latino? There were 3,444 students enrolled at MVCC at the time of the study. How many (not percent) students were Asian? (The answer must be a whole number.)1. The heights (in inches) of 24 adult males are listed below. Using 5 classes starting with 60 to under 63, 63 to under 66, etc. 70.2, 72.5, 71.4, 70.8, 69.0, 73.3, 69.6, 68.3, 70.2, 71.5, 61.6, 63.7, 67.9, 71.0, 70.8, 74.1, 69.3, 68.2, 71.8, 71.0, 71.5, 72.7, 62.4, 64.2 a. Construct a frequency and relative frequency distribution. b. Construct a histogram. c. What percent of the males are under 66 inches? d. What is the shape of the distribution? (left-skewed, right-skewed or bell-shaped)3. The following ages of 11 music teachers in a school district. Notice that the ages are ordered from least to greatest Give the five-number summary and the interquartile range (IQR) for the data set: 33,34,37,39,40,40,45,48,50,56,57 Minimum: Maximum: Median: Q1: Q3: IQR:
- The Department of the Census provides the following data table. single married widowed divorced total Male .129 .298 .013 .040 .48 Female .305 .057 .054 .52 Total .233 .603 .070 .094 1.0 a) Fill in the missing word for each of the totals. (What is being totaled in each column/row?) b) Find P(Widowed and Male). = .013 c) Find P(Widowed)=.070 d) Find P(Married or Female). Write out the formula you use so I know that you know what you are doing. e) Find P(Widowed and Divorced). Explain your answer. f) Are Divorced and Male Mutually Exclusive events. Why or why not?The racial/ethnic diversity of post high school students enrolled at MVCC during the fall 2020 semester is given below. Racial/Ethnic Diversity of Post High School Students Race/Ethnicity Percent* American Indian or Alaska Native 0.4% Asian 5.3% Black or African American 9.6% Hispanic or Latino 9.6% Two or more races 2.8% Native Hawaiian or Pacific Islander <0.1% Non-Resident Alien 0.5% Unknown 1.5% White 70.2% (*Percentages may not total 100 due to rounding) Is race/ethnicity a qualitative or quantitative variable Is the data displayed in a frequency or relative frequency distribution?