Several years ago the proportion of Americans aged 18 - 24 who invested in the stock...

Several years ago the proportion of Americans aged 18 - 24 who invested in the stock market was 0.20. A random sample of 25 Americans in this age group was recently taken. They were asked whether or not they invested in the stock market. The results follow:

yes	no	no	yes	no
no	yes	no	no	yes
no	no	no	no	no
no	yes	no	yes	no
No	no	yes	no	no

At a .05 level of significance, use Excel to determine whether or not the proportion of Americans 18 - 24 years old that invest in the stock market has changed.

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orchestra answered 1 year ago

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