Julia hypothesizes that fewer than 90 percent of her Visa purchases are under $100. She examines a random sample of her recent purchases and performs a test. The results shown below are from MegaStat. What would Julia conclude from this test? Explain carefully.
$$\begin{array} { | c c l | }
\hline \text { Observed } & \text { Hypothesized } & \
0.8308 & 0.9 & \mathrm { p } \text { (as decimal) } \
108 / 130 & 117 / 130 & \mathrm { p } \text { (as fraction) } \
108 . & 117 . & \mathrm { X } \
130 & 130 & \mathrm { n } \
& & \
0.0263 & \text { std. error } & \
- 2.63 & z & \
.0043 & \text { p-value (one-tailed, lower) } \
\hline
\end{array}$$

Question

Julia hypothesizes that fewer than 90 percent of her Visa purchases are under $100. She examines a random sample of her recent purchases and performs a test. The results shown below are from MegaStat. What would Julia conclude from this test? Explain carefully.
$$\begin{array} { | c c l | } 
\hline \text { Observed } & \text { Hypothesized } & \
0.8308 & 0.9 & \mathrm { p } \text { (as decimal) } \
108 / 130 & 117 / 130 & \mathrm { p } \text { (as fraction) } \
108 . & 117 . & \mathrm { X } \
130 & 130 & \mathrm { n } \
& & \
0.0263 & \text { std. error } & \
- 2.63 & z & \
.0043 & \text { p-value (one-tailed, lower) } \
\hline
\end{array}$$

Quizplus · Accepted Answer

The Answer of Julia hypothesizes that fewer than 90 percent of her Visa purchases are under $100. She examines a random sample of her recent purchases and performs a test. The results shown below are from MegaStat. What would Julia conclude from this test? Explain carefully.
$$\begin{array} { | c c l | } 
\hline \text { Observed } & \text { Hypothesized } & \
0.8308 & 0.9 & \mathrm { p } \text { (as decimal) } \
108 / 130 & 117 / 130 & \mathrm { p } \text { (as fraction) } \
108 . & 117 . & \mathrm { X } \
130 & 130 & \mathrm { n } \
& & \
0.0263 & \text { std. error } & \
- 2.63 & z & \
.0043 & \text { p-value (one-tailed, lower) } \
\hline
\end{array}$$

Julia Hypothesizes That Fewer Than 90 Percent of Her Visa