4. (Chapter 6.1) Specifications call for the mean tensile strength u of paper used in a certain packaging application to be greater than 50 psi. A new type of paper is being considered for this application. The tensile strength is measured for a sample of 110 specimens of this paper. The mean strength was 51.2 psi and the standard deviation was 4.0 psi. Can you conclude that the mean strength is greater than 50 psi? а. What are the null and alternative hypotheses? b. What is the p-value? c. Does the p-value suggest that the mean strength is greater than 50 psi? Why or why not?

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4. (Chapter 6.1) Specifications call for the mean tensile strength u of paper used in a
certain packaging application to be greater than 50 psi. A new type of paper is being
considered for this application. The tensile strength is measured for a sample of 110
specimens of this paper. The mean strength was 51.2 psi and the standard deviation was
4.0 psi. Can you conclude that the mean strength is greater than 50 psi?
а.
What are the null and alternative hypotheses?
b. What is the p-value?
c. Does the p-value suggest that the mean strength is greater than 50 psi? Why or why
not?
Transcribed Image Text:4. (Chapter 6.1) Specifications call for the mean tensile strength u of paper used in a certain packaging application to be greater than 50 psi. A new type of paper is being considered for this application. The tensile strength is measured for a sample of 110 specimens of this paper. The mean strength was 51.2 psi and the standard deviation was 4.0 psi. Can you conclude that the mean strength is greater than 50 psi? а. What are the null and alternative hypotheses? b. What is the p-value? c. Does the p-value suggest that the mean strength is greater than 50 psi? Why or why not?
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