Question: need help, Question 30 0 out of1 points To estimate the difference between the mean mileages of a new make of a hybrid model car
need help,



Question 30 0 out of1 points To estimate the difference between the mean mileages of a new make of a hybrid model car and comparable traditional models, two independent simple random samples are taken, their mileages are measured and the results are shown in the following table. Hybrid Traditional Sample Mean 53.7 mpg 28.2 mpg Sample Standard 3.2 mpg 2.6 mpg Deviation Write the point estimate of the mean mpg for hybrid mean mpg for traditional based on the above observations. Questlon 31 0 out of1 points To estimate the difference between the mean mileages of a new make of a hybrid model car and comparable traditional models, two independent simple random samples are taken, their mileages are measured and the results are shown in the following table. I I Hybrid Traditional | Sample Mean | 53.7 mpg 28.2 mpg Sample Standard 3.2 mpg 2.6 mpg Deviation Write the margin of error for a 95% confidence interval for the "mean mpg for hybrid mean mpg for traditional " based on the above observations. Use unpooled procedure and round your answer to two digits after the decimal sign. Questlon 12 o outof1 points Round your answer down to the nearest whole number for the question below. A boat sewing a tourist area can carry a maximum load of 16000 lb of tourists. To estimate the mean weight of the tourists, the weights of a simple random sample of 50 tourists and their belongings is taken. The mean of the measurements of this sample is 178 lb. and the standard deviation is 32 lb. Construct a 95% t-interval and use the right end point of the interval to find the maximum number of tourists that should be allowed on the boat
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