A random sample of 802 shoppers in NoFrills grocery store determined that 418 preferred the PC...

A random sample of 802 shoppers in NoFrills grocery store determined that 418 preferred the PC brand product over the main competitor's product. Test at the 10% level the null hypothesis that at least one half of all shoppers preferred the PC brand item against the alternative that the population proportion is more than 50%.

A.
The test statistic is 1.19; the p-value is 0.117; and we fail to conclude that the PC brand is preferred to the competitor's brand.
B.
The test statistic is 1.19; the p-value is 0.234; and we fail to conclude that the PC brand is preferred to the competitor's brand.
C.
The test statistic is 1.19; the p-value is 0.117; and we conclude that the PC brand is preferred to the competitor's brand.
D.
The test statistic is 1.44; the p-value is 0.234; and we fail to conclude that the PC brand is preferred to the competitor's brand.

Solutions

Expert Solution

answers are slightly different due to approximation so no need to worry about .

in given question option (A) is correct

please like ?

orchestra answered 1 year ago

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