Number of unfavorable traits attributed to minorities ID Before Testing After Testing 1 6. 2. 4 4. 3 3 4 3

A random sample of employees participating in a company fitness program were asked how many days they logged an exercise activity in the past month. Their responses are reported in the histogram below.Based on the histogram above, what is the class width? Clas width = ? Days What is the sample size? Sample size = ? employees

4. Use a 0.05 significance level to test the claim that gender and left-handedness are independent. Male Female Left-handed 83 184 Right-handed 17 16

A social psychologist wants to know if there are differences in extraversion scores based on gender identity (male, female, nonbinary). She should use a ____ ANOVA. a. three-way within-groups b. one-way between-groups c. one-way within-groups d. three-way between-groups

People were asked their gender and if the preferred Coke or Pepsi. The results are summarized in the table below. Test the claim that gender and soda preference are independent. Please provide the critical value, test statistic and conclusion.     Coke Pepsi Male 53 26 Female 58 29

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In a statistics class, 10 scores were randomly selected, and the following results were obtained: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 What is the 90thpercentile? What is the first quartile (or 25thpercentile)? What is the third quartile (or 75thpercentile)?

1. A furniture store reduces the prices of sofas in an autumn sale. The number of sofas sold during the 19 days of the sale were: 41, 44, 48, 55, 40, 44, 45, 42, 55, 55, 36, 36, 51, 47, 41, 38, 43, 48, 53 Work out the median and the lower and upper quartiles for the number of sofas sold in (3) the sale.

please complete the blank problem and or ones with a red x next to it not ones with a green check next to please

a) The IQR is a measure of spread of the 50% of a set of data. b) In a set of data that contains 250 data, to calculate the 40th percentile which 2 data must you average? c) What are the 3 measures of central tendency? and 31 UNG