Question

In: Statistics and Probability

Calvin thinks a certain potato chip maker is putting fewer chips in their regular bags of...

Calvin thinks a certain potato chip maker is putting fewer chips in their regular bags of chips. From a random sample of 18 bags of potato chips he calculated a P value of 0.044 for the sample.

(a) At a 5% level of significance, is there evidence that Calvin is correct? (Type: Yes or No):


(b) At a 10% level of significance, is there evidence that he is correct? (Type: Yes or No):


(c) In a statistical test of hypotheses, we say that the data are statistically significant at level αα if

A. αα is small.
B. α=0.05α=0.05.
C. the P - value is less than αα.
D. the P - value is larger than αα.


Solutions

Expert Solution


Related Solutions

en thinks a certain potato chip maker is putting fewer chips in their regular bags of...
en thinks a certain potato chip maker is putting fewer chips in their regular bags of chips. From a random sample of 23 bags of potato chips she calculated a P value of 0.047 for the sample. (a) At a 5% level of significance, is there evidence that Jen is correct? (Type: Yes or No): ____ (b) At a 10% level of significance, is there evidence that she is correct? (Type: Yes or No): ____ (c) In a statistical test...
A manufacturer makes bags of popcorn and bags of potato chips. The average weight of a...
A manufacturer makes bags of popcorn and bags of potato chips. The average weight of a bag of popcorn is supposed to be 3.07 3.07 ounces with an allowable deviation of 0.05 0.05 ounces. The average weight of a bag of potato chips is supposed to be 5.03 5.03 ounces with an allowable deviation of 0.03 0.03 ounces. A factory worker randomly selects a bag of popcorn from the assembly line and it has a weight of 3.06 3.06 ounces....
Potato chips is a staple snack in Japan. Nowadays international potato chip brand are trying to...
Potato chips is a staple snack in Japan. Nowadays international potato chip brand are trying to gain control of the market in Japan. One of the strong competitor is a potato chip company from America called Pringles. To prepare for this you can research online about the brand online or estimate how international company fare in Japan. Make a SWOT analysis table about Pringles in Japan and briefly explain it briefly!
A potato chip company advertises that their family sized bag of potato chips have an average...
A potato chip company advertises that their family sized bag of potato chips have an average weight of 10 oz. I want to know if the bags are overfilled. I randomly sampled 100 bags of chips and find that my sample has a mean weight of 10.1 oz and a standard deviation of 0.2 oz. The sample data was not strongly skewed. 1. Write the appropriate null and alternative hypothesis. 2. Calculate the t score. 3. use the t score...
Students investigating the packaging of potato chips purchased 6 bags of chips marked with a net...
Students investigating the packaging of potato chips purchased 6 bags of chips marked with a net weight of 28.5 grams. They carefully weighed the contents of each​ bag, recording the following weights​ (in grams): 29.4​, 28.3​, 29.4​, 28.8​, 28.9​, 28.5. A) Create a 95% confidence interval for the mean weight of such bags of chips: ( __ , __ ) grams -- Round to one decimal as needed. B) Explain in context what your interval means: - We are 95%...
Johnson's brand potato chips claims that there are fewer fat grams in an 8 oz serving...
Johnson's brand potato chips claims that there are fewer fat grams in an 8 oz serving of their chips than Corleone's brand. To test this claim, 8 oz samples of each brand was collected and tested to measure the amount of fat grams in each and the results are given below. Test the claim using a 1% level of significance. Johnson's Corleone's n1 = 54 n2 = 70 x1=12.4 x2=11.8 s1 = 4.3 s2 = 8.6 a. Enter the Null...
Students investigating the packaging of potato chips purchased 6 bags of Lay's Ruffles marked with a...
Students investigating the packaging of potato chips purchased 6 bags of Lay's Ruffles marked with a net weight of 28.3 grams. They carefully weighted contents of each bag, and recorded the following weights: 29.3 28.2 29.1 28.7 28.9 28.5 a) What are the requirements to produce a confidence interval for this data? In your opinion, are these conditions met? b) Summarize this data by finding the mean and standard deviation. c) For a 90% interval, what is the t critical...
A local chip manufacturer distributes chips in bags labeled as 150g. A group of consumers believe...
A local chip manufacturer distributes chips in bags labeled as 150g. A group of consumers believe they are being cheated. They run a test on 32 bags, measures their contents, and obtains a sample mean of 145 grams with a standard deviation of 6 ounces. Use a 0.01 significance level to test the consumer's claim that the company is cheating its customers.
A potato chip company claims that their chips have 130 calories per serving. We think this...
A potato chip company claims that their chips have 130 calories per serving. We think this claim is too low, so we buy 40 bags of chips and test the calories per stated serving size.  Our sample yields a mean of 132 calories per serving, with a standard deviation of 6 calories. Is the manufacturer's claim too low? \ Use alpha = 0.05.
Bags of a certain brand of tortilla chips claim to have a net weight of 14...
Bags of a certain brand of tortilla chips claim to have a net weight of 14 ounces. Net weights actually vary slightly from bag to bag and are normally distributed with mean μ. A representative of a consumer advocate group wishes to see if there is any evidence that the mean net weight is less than advertised and so intends to test the hypotheses H0: μ = 14, Ha: μ < 14. To do this, he selects 16 bags of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT