The average weight of a package of rolled oats is supposed to be at least 18...

The average weight of a package of rolled oats is supposed to be at least 18 ounces. A sample of 18 packages shows a mean of 17.78 ounces with a standard deviation of 0.41 ounce. (a) At the 5 percent level of significance, is the true mean smaller than the specification? Clearly state your hypotheses and decision rule.(Multiple Choice)

a. H0: μ ≥ 18. Reject H0 if tcalc > –1.74

b. H1: μ < 18. Reject H1 if tcalc < –1.74

c. H0: μ ≥ 18. Reject H0 if tcalc < –1.74

d. H1: μ < 18. Reject H1 if tcalc > –1.74

(b) If α = .01, we would have:(Multiple Choice)

a. failed to reject the null hypothesis.

b. rejected the null hypothesis.

(c) Use Excel to find the p-value. (Round your answer to 4 decimal places.)

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

The average weight of a package of rolled oats is supposed to be at least 20...

The average weight of a package of rolled oats is supposed to be at least 20 ounces. A sample of 18 packages shows a mean of 19.73 ounces with a standard deviation of 0.48 ounce. (a) At the 5 percent level of significance, is the true mean smaller than the specification? Clearly state your hypotheses and decision rule. H0: μ ≥ 20. Reject H0 if tcalc > –1.740 H1: μ < 20. Reject H1 if tcalc < –1.740 H0: μ...

. A bottling company is supposed to fill bottles with an average weight of 16 ounces....

. A bottling company is supposed to fill bottles with an average weight of 16 ounces. The company randomly selects several bottles and weighs the liquid. The weights are given below. Weights: 16.05 15.91 15.88 16.02 15.95 15.73 15.69 16.01 a) Determine a 98% confidence interval for the population mean. b) Determine a 95% confidence interval for μ

Suppose that the weight of a package in a package delivery service is right-skewed with mean...

Suppose that the weight of a package in a package delivery service is right-skewed with mean 1 pound and standard deviation 0.5774 pounds. Its density curve is shown in the following graph. (a) If you randomly choose 64 packages, find the sampling distribution of their average weight. Please indicate the shape, mean and standard deviation. (b) For randomly selected 64 packages, find the probability that their average weight is above 1.02 pounds. Let X¯ be the average weight of randomly...

Provide an appropriate response. The regression equation predicting the average weight of a male aged 18-24...

Provide an appropriate response. The regression equation predicting the average weight of a male aged 18-24 (y) based on his height (x) is given by = -172.63 + 4.842x. What is the best prediction for the weight of a male aged 18-24 who is 70 inches tall? Round your answer to the nearest pound. 399 70 166 -y-

In the game of roulette, a steel ball is rolled onto a wheel that contains 18...

In the game of roulette, a steel ball is rolled onto a wheel that contains 18 red, 18 black, and 2 green slots. If the ball is rolled 38 times, find the probability of the following events. A. The ball falls into the green slots 3 or more times. Probability = (0.3815 is the wrong answer) B. The ball does not fall into any green slots. Probability = (0.2590 is wrong) C. The ball falls into black slots 14 or...

In the game of roulette, a steel ball is rolled onto a wheel that contains 18...

In the game of roulette, a steel ball is rolled onto a wheel that contains 18 red, 18 black, and 2 green slots. If the ball is rolled 38 times, find the probability of the following events. A. The ball falls into the green slots 4 or more times. B. The ball does not fall into any green slots. C. The ball falls into black slots 15 or more times. D. The ball falls into red slots 10 or fewer...

Explain the terms in detail. a) Number Average Molecular Weight, Mn b) Weight Average Molecular Weight,...

Explain the terms in detail. a) Number Average Molecular Weight, Mn b) Weight Average Molecular Weight, Mw

The weights of cans of Ocean brand tuna are supposed to have a net weight of...

The weights of cans of Ocean brand tuna are supposed to have a net weight of 6 ounces. The manufacturer tells you that the net weight is actually a Normal random variable with a mean of 5.99 ounces and a standard deviation of 0.21 ounces. Suppose that you draw a random sample of 40 cans. Part i) Using the information about the distribution of the net weight given by the manufacturer, find the probability that the mean weight of the...

1.The manufacturer of cans of salmon that are supposed to have a net weight of 6...

1.The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that the net weight is actually a normal random variable with a mean of 5.98 ounces and a standard deviation of 0.12 ounce. Suppose that you draw a random sample of 44 cans. Find the probability that the mean weight of the sample is less than 5.94 ounces. Probability = 2.Scores for men on the verbal portion of the SAT-I test...

Supposed to waiting to my pro price is not only distributed with a mean of 18...

Supposed to waiting to my pro price is not only distributed with a mean of 18 minutes and serve Eva tion 4 minutes and I giving mom for 31 days determine the probability that the average waiting time is less than 6 minutes

Subjects