Suppose you collect data from 10 individuals that took the SATs two times.     ID 1 2 3 4 5 6 7 8 9 10 Mean SD 1st time 900 890 900 1000 900 1080 1200 1300 1200 1030 1040 150.33 2nd time 920 890 960 980 1020 1000 1310 1400 1210 1030 1072 173.26 Diff 20 0 60 -20 120 -80 110 100 10 0 32.00 64.26   Is there a significant change in SAT scores using a two-tailed test at .05?

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A researcher wants to know if the news station a person watches is a factor in the amount of time (in minutes) that they watch. The table below shows data that was collected from a survey. Local FOX CNN 44 55 65 46 62 65 32 24 49 22 67 52 23 63 59 38 63 57 26 18 37 38   29 41     The test-statistic for this data =  (Please show your answer to 3 decimal places.) The p-value for this sample =  (Please show your answer to 4 decimal places.) The p-value is     αα  Base on this, we should      hypothesis As such, the final conclusion is that... There is sufficient evidence to support the claim that station is a factor in the amount of time people watch the news. There is insufficient evidence to support the claim that station is a factor in the amount of time people watch the news.

Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place are shown below. Frequencies of Breakfasts for Men and Women   French Toast Pancakes Waffles Omelets Men 81 59 84 87  Women 114 75 104 58  α = 0.05 significance level The test-statistic for this data =  (Please show your answer to three decimal places.) The p-value for this sample = (Please show your answer to four decimal places.)  Thus, the final conclusion is... There is sufficient evidence to conclude that the distribution of breakfast ordered for men is the same as it is for women. There is insufficient evidence to conclude that the distribution of breakfast ordered for men is not the same as it is for women. There is sufficient evidence to conclude that the distribution of breakfast ordered for men is not the same as it is for women There is sufficient evidence to conclude that breakfast ordered and gender are dependent. There is…

The data for recent year showed the taxes and million dollars received from a random sample 10 states find the first and third quarters in the IQ are 31 5 20 36 33 13 11 26 30 28

otected View - Saved to this PC Search View Help 12. The city council is considering a law that would ban smoking in all public facilities. A sample has been selected from the community and tested for of the ordinance. Is there a statistically significant relationship between age and support for the anti-smoking law? Use the five step model as a guide and write a sentence or two interpreting your results. support Age More than 40 Less than 40 Support: For 145 78 223 Against 103 248 169 247 272 495 A. Use probabilities to determine if these two variable are independent or dependent P (Less than 40) 3D P(Less than 40 | For)= P(Less than 40| Against) = Are age and support for the anti-smoking law independent? (Yes independent/No = not independent) B. Conduct a hypothesis test using an alpha of .05 that these variables are i

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Find the mean, the median, and all modes for the data in the given frequency distribution. (Round your answers to one decimal place. If there is more than one mode, enter your answer as a comma-separated list. If an answer does not exist, enter DNE.) mean      median      mode(s)      Points Scored by Lynn Points scored in abasketball game Frequency 2 9 6 8 7 9 10 7 11 2 13 4 14 2

K Light bulb lifetime. Find the mean and median for the data in the following table. Interval Frequency 799.5-899.5 2 Life (Hours) of 50 Randomly Selected Light Bulbs 899.5-999.5 999.5-1,099.5 8 20 The mean is 1,099.5-1,199.5 1,199.5-1,299.5 10 10

Using significance level=0.01, test the claim that the three brands have the same mean if the following sample results have been obtained. Round you answer to 3 decimal places. Brand A Brand B Brand C 44 30 28 47 32 27 44 34 31 40 36 32 39 38 36 43 40 31 43 42 31