New Survey Frequency, fe A survey was conducted two years ago asking college students their top motivations for using a credit card. You think this distribution has changed. You randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the distribution? Use a = 0.10. Complete parts (a) through (d). Old Survey % 28% 23% Response Rewards Low rates Cash back Discounts Other 112 97 21% 9% 107 47 19% 62 a. State H, and H, and identify the claim. What is the null hypothesis, Ho? A. The distribution of motivations is 28% rewards, 23% low rate, 21% cash back, 9% discounts, and 19% other. O B. The distribution of motivations is 112 rewards, 97 low rate, 107 cash back, 47 discounts, and 62 other. OC. The distrībution of motivations differs from the old survey. What is the alternate hypothesis, H? A. The distribution of motivations differs from the old survey. O B. The distribution of motivations is 28% rewards, 23% low rate, 21% cash back, 9% discounts, and 19% other.

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A:

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Q: hypothesis test.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.