Question

Using the TI 84 Calculator 1) What sampling distribution will you use? Do you think the sample size is sufficiently large? Explain. 2) Use the value of the sample test statistic to find the corresponding z value. (Round your answer to two decimal places.) 3) Find the P-value of the test statistic. (Round your answer to four decimal places.) 4) Based on your answers in parts (2) through (3), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level 𝛼? 5) Interpret your conclusion in the context of the application. A social media company wonders if proportion of social media users who use their platform has decreased worldwide? A report claimed that 57% of social media users use the platform. Suppose you conducted a survey and a random sample of 49 people showed that 24 of them still have an account on the platform. Use a 5% level of significance to determine whether the proportion of social media users who have an account on the platform has decreased from 57%.

          Using the TI 84 Calculator 

1) What sampling distribution will you use? Do you think the sample size is sufficiently large? Explain.

2) Use the value of the sample test statistic to find the corresponding z value. (Round your answer to two decimal places.)

3) Find the P-value of the test statistic. (Round your answer to four decimal places.)

4) Based on your answers in parts (2) through (3), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level 𝛼?

5) Interpret your conclusion in the context of the application.


A social media company wonders if proportion of social media users who use their platform has decreased worldwide? A report claimed that 57% of social media users use the platform. Suppose you conducted a survey and a random sample of 49 people showed that 24 of them still have an account on the platform. Use a 5% level of significance to determine whether the proportion of social media users who have an account on the platform has decreased from 57%.

Added by Giuseppe C.

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