Many people feel that cereal is healthier alternative for children over glazed donuts. In a sample of 19 cereals geared toward children, the mean grams of sugar was = 10.6316 with standard deviation S = 1.5709. Estimate the mean amount of grams of sugar in children cereal using a 90 % confidence level. Round your answers to three decimal places, and use four decimal places for any interim calculations. % confidence, it can said that the true mean amount of sugar in children cereal is between With and

You measure 40 dogs' weights, and find they have a mean weight of 71 ounces. Assume the population standard deviation is 9.6 ounces. Based on this, construct a 95% confidence interval for the true population mean dog weight. Give your answers as decimals, to two places ounces

Sam is the manager of a used clothing store.  He wants to estimate the average amount a customer spends per visit.  A random sample of 70 customers’ receipts gave a mean of = $7.10 with a standard deviation s = $2.30.  Find a 99% confidence interval for the average amount spent by all customers. Interpret your findings.

You measure 31 backpacks' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 3.8 ounces. Based on this, construct a 95% confidence interval for the true population mean backpack weight.

In a random sample of 2500 men being treated for obesity, the mean total cholesterol level is 175 with a standard deviation of 25.       Construct a 95% confidence interval around the mean and interpret it. Use the context of the question please.

A random sample of 64 shoppers showed that they spend an average of $27.31 per visit at the Sunday Mornings Bookstore. The standard deviation of the population is $2.14. Find the 90% confidence interval of the true mean. Please include all work showing how you found your answer.

A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 128 ounces and a standard deviation of 0.40 ounce. You randomly select 45 cans and carefully measure the contents. The sample mean of the cans is 127.9 ounces. Does the machine need to be reset? Explain your reasoning. it is that you would have randomly sampled 45 cans with a mean equal to 127.9 ounces, because it within the range of a usual event, namely within of the mean of the sample means.

For a group of 20 students taking a PSDTF test, the mean heart rate was 96 beats per minute, and the standard deviation was 5. Find the 95% confidence interval of the true mean.

Researchers wants to determine if low-fat diets or low-carb diets are more effective for weight loss. Suppose 100 people were placed on a low-fat diet and at the end of 3 months the mean weight loss was 10.5 lbs witha standard deviation of 12.5 lbs. There were another 100 people placed on a low-carb diet and at the end of 3 months the mean weight loss was 16.5 lbs with a standard deviation of 10.2 lbs. Does mean weight lossdiffer between the two diets? What are the hypotheses??

You measure 31 turtles' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 14.6 ounces. Based on this, construct a 95% confidence interval for the true population mean turtle weight. Give your answers as decimals, to two places ounces