a. Construct a 95% confidence interval for true average cost of online streaming service in State A (HA). b. Construct a 95% confidence interval for difference between true average cost of online...


A study regarding the average cost of online streaming services in two states (A and B) is conducted. The results are shown in the following table. X and Y are independent.


a. Construct a 95% confidence interval for true average cost of online streaming service<br>in State A (HA).<br>b. Construct a 95% confidence interval for difference between true average cost of online<br>streaming service in States A and B (HA – H3).<br>c. Do the data show enough evidence to suggest a difference between true average cost<br>of online streaming service in States A and B (uA - Hs) at a = 0.05?<br>Zo.025 = 1.96<br>Zo.05 = 1.65<br>State A<br>State B<br>* = $20<br>s = 100<br>y = $18<br>S = 121<br>n = 100<br>m = 100<br>

Extracted text: a. Construct a 95% confidence interval for true average cost of online streaming service in State A (HA). b. Construct a 95% confidence interval for difference between true average cost of online streaming service in States A and B (HA – H3). c. Do the data show enough evidence to suggest a difference between true average cost of online streaming service in States A and B (uA - Hs) at a = 0.05? Zo.025 = 1.96 Zo.05 = 1.65 State A State B * = $20 s = 100 y = $18 S = 121 n = 100 m = 100

Jun 11, 2022
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