The weights of four 32 ounce bags of almonds were actually found to 28, 32, 35, and 33 ounces.
a) Find the sample mean
b) Find the population standard deviation.
c) Find the sample variance
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The weights of four 32 ounce bags of almonds were actually found to 28, 32, 35,...
1. The weights of four 32 ounce bags of almonds were actually found to 28, 32, 35, and 33 ounces. a. Find the sample mean. (5) b. Find the population standard deviation. (8) c. Find the sample variance. (5)
The weights of bags of baby carrots are normally distributed, with a mean of 32 ounces and a standard deviation of 0.36 ounce. A) Sketch the distribution of weights and label the mean, µ, and label two standard deviations in both directions on the sketch. B) Bags that weigh more than 32.6 oz are considered too heavy and must be repackaged. What percentage of bags of baby carrots will need to be repackaged? (1) Draw a new picture and shade...
The weights of bags of baby carrots are normally distributed, with a mean of 28 ounces and a standard deviation of 0.33 ounce. Bags in the upper 4.5% are too heavy and must be repackaged. What is the most a bag of baby carrots can weigh and not need to be repackaged?
normally distributed) with a mean of 32 ounces and a standard deviation 1. The weights of bags of of 0.36 ounce. Bags in the upper 4.5% are too heavy and must be repackaged, what is the most a bag of baby carrots can weigh and not need to be repackaged? -5 points 2. Som e college students use credit cards to pay for school-related expenses. For this population, the amount paid is normally distributed, with a mean of $1615 and...
The distribution of weights on 9-ounce bags of potato chips is approximately normal with a mean of 9.12 ounces and a standard deviation of 0.15 ounce. What is the range of weights for 95% of the bags?
The weights of four randomly and independently selected bags of tomatoes labeled 5.0 pounds were found to be 5.4, 5.0, 5.3, and 5.5 pounds. Assume Normality. Answer parts (a) and (b) below. a. Find the 95% confidence interval for the mean weight of all bags of tomatoes. (____ , ____) b. Can you reject the population mean of 5 pounds?
show work You are performing a study about the weight of preschoolers. A previous study found the weights to be normally distributed with a mean of 30 and a standard deviation of 4. You randomly sample 30 preschool children and find their weights to be as follows. 25 25 26 26.5 27 27 27.5 28 28 28.5 29 29 30 30 30.5 31 31 32 32.5 32.5 33 33 34 34.5 35 35 37 37 38 38 a) Draw a...
The amount of corn chips dispensed into a 13-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 13.5 ounces and a standard deviation of 0.3 ounce. Suppose 40 bags of chips were randomly selected from this dispensing machine. Find the probability that the sample mean weight of these 40 bags exceeded 13.6 ounces.
The weights of bags of baby carrots are normally distributed, with a mean of 34 ounces and a standard deviation of 0.37 ounce. Bags in the upper 4.5% are too heavy and must be repackaged. What is the most a bag of baby carrots can weigh and not need to be repackaged?
You measure 35 textbooks' weights, and find they have a mean weight of 32 ounces. Assume the population standard deviation is 10.4 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places ____________< μ <_________