A researcher has obtained the number of hours worked per week during the summer for a...
A researcher has obtained the number of hours worked per week
during the summer for a sample of fifteen students.
40 25 35 30 20 40 30 20 40 10 30 20 10 5 20
Using this data set, compute the
a. median
b. mean
c. mode
d. 40th percentile
e. range
f. sample variance
g. standard deviation
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A researcher has obtained the number of hours worked per week
during the summer for a...
The number of hours per week that the television is turned on is determined for each...
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 35 hours and the median is 31.2 hours. Twenty-four of the families in the sample turned on the television for 20 hours or less for the week. The 19th percentile of the data is 20 hours. Step 1 of 5: Based on the given information, determine if the following statement is true or false....
The number of hours per week that the television is turned on is determined for each...
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 35 hours and the median is 31.2 hours. Twenty-four of the families in the sample turned on the television for 20 hours or less for the week. The 11th percentile of the data is 20 hours. Step 4 of 5 : What is the value of the 50th percentile?
The number of hours per week that the television is turned on is determined for each...
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 35 hours and the median is 31.2 hours. Twenty-four of the families in the sample turned on the television for 20 hours or less for the week. The 15th percentile of the data is 20 hours. Step 2 of 5 : Approximately how many families are in the sample? Round your answer to the...
1-5 Imagine you wish to determine whether the mean number of hours worked per week by...
1-5
Imagine you wish to determine whether the mean number of hours worked per week by women in a sample differs from the national 40-hour average. Use this information and the table below to test your hypothesis. Weekly Hours Worked Women Range 60 Minimum value Maximum value 65 Mean 41.5 Standard deviation 10.00 Number of observations 1 1 - Make three necessary assumptions. Assumption #1: Assumption #2: Assumption #3: 2-State the null and research hypotheses (use an alpha level of...
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A random sample of 15 college students were asked "How many hours per week typically do you work outside the home?" Their 13 responses are shown on the right 31 13 Determine the shape of the distribution of hours worked by drawing a frequency histogram and computing the mean and median 18 Which measure of central tendency better describes hours worked? 16 18 25 28 20 24 15 Choose the correct frequency histogram below Hours Worked per Week OA Hours...
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A researcher wants to estimate how many hours per week students who love off campus spend driving to campus. A simple random sample of 84 students had a mean of 5.0 hours of driving. Construct and interpret a 90% confidence interval for the mean number of hours a student drives per week. Assume the population standard deviation is known to be 0.3 hours per week.
A researcher wanted to know if high school juniors worked more hours per week than high...
A researcher wanted to know if high school juniors worked more hours per week than high school seniors. His findings are in the table below. Test the hypothesis at -0.05. 8.4 Senior Junior Mean 18.5 19.1 Population Standard 7.1 Deviation Sample size 39 37 Which of the following are the correct test statistic and p-value? Z= 0.3354, P = 0.3686 OZ 0.3354, P 0.3691 0.3686 OT 0.3354, P 0.3354, P ОТ 0.3601
The number of hours per week that the television is turned on is determined for each...
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 30 hours and the median is 26.2 hours. Twenty-four of the families in the sample turned on the television for 15 hours or less for the week. The 11th percentile of the data is 15 hours. Approximately how many families are in the sample? Round your answer to the nearest integer.
The number of hours per week that the television is turned on is determined for each...
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 38 hours and the median is 34.2 hours. Twenty-four of the families in the sample turned on the television for 23 hours or less for the week. The 6th percentile of the data is 23 hours. What is the value of the 50th percentile?
Question 10 of 20 Here again, is the distribution of number hours of exercise per week...
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The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 35 hours and the median is 31.2 hours. Twenty-four of the families in the sample turned on the television for 20 hours or less for the week. The 19th percentile of the data is 20 hours. Step 1 of 5: Based on the given information, determine if the following statement is true or false....
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 35 hours and the median is 31.2 hours. Twenty-four of the families in the sample turned on the television for 20 hours or less for the week. The 11th percentile of the data is 20 hours. Step 4 of 5 : What is the value of the 50th percentile?
1-5
Imagine you wish to determine whether the mean number of hours worked per week by women in a sample differs from the national 40-hour average. Use this information and the table below to test your hypothesis. Weekly Hours Worked Women Range 60 Minimum value Maximum value 65 Mean 41.5 Standard deviation 10.00 Number of observations 1 1 - Make three necessary assumptions. Assumption #1: Assumption #2: Assumption #3: 2-State the null and research hypotheses (use an alpha level of...
A random sample of 15 college students were asked "How many hours per week typically do you work outside the home?" Their 13 responses are shown on the right 31 13 Determine the shape of the distribution of hours worked by drawing a frequency histogram and computing the mean and median 18 Which measure of central tendency better describes hours worked? 16 18 25 28 20 24 15 Choose the correct frequency histogram below Hours Worked per Week OA Hours...
A researcher wanted to know if high school juniors worked more hours per week than high school seniors. His findings are in the table below. Test the hypothesis at -0.05. 8.4 Senior Junior Mean 18.5 19.1 Population Standard 7.1 Deviation Sample size 39 37 Which of the following are the correct test statistic and p-value? Z= 0.3354, P = 0.3686 OZ 0.3354, P 0.3691 0.3686 OT 0.3354, P 0.3354, P ОТ 0.3601
Question 10 of 20 Here again, is the distribution of number hours of exercise per week for 50 male college student: Frequency Hours of Exercise Per Week What are appropriate numerical measures of center and spread in this case? Hours of Exercise Per Week What are appropriate numerical measures of center and spread in this case? The mean and the median. The mean and standard deviation The IQR and standard deviation The mean and IQR The median and standard deviation...
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