Question: Based on a survey of 1000 adults by Greenfield Online
Based on a survey of 1000 adults by Greenfield Online and reported in a May 2009 USA Today Snapshot, adults 24 years of age and under spend a weekly average of $35 on fast food. If 200 of the 1000 adults surveyed who were in the 24 and under age category provided a standard deviation of $14.50, construct a 95% confidence interval for the weekly average expenditure on fast food for adults 24 years of age and under. Assume fast food weekly expenditures are normally distributed.
Answer to relevant QuestionsThe Robertson square drive screw was invented in 1908, but it has gained in popularity with American woodworkers and home craftspeople only within the last 10 years. The advantages of square drives over conventional screws ...Use a computer or calculator to construct a 0.98 confidence interval using the sample data: Calculate the value of t_ for the hypothesis test: Ho: µ = 32 Ha: µ > 32 n = 16 = 32.93 s = 3.1 Use a computer or calculator to find the p-value for the following hypothesis test: Ho: µ = 73 Ha: µ = 73, n = 12 x = 71.46 s = 4.1 Use a computer or calculator to complete the hypothesis test Ho: µ = 52 Ha: µ < 52 a = 0.01
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