Last year, 46% of business owners gave a holiday gift to their employees. A survey of business owners indicated that 50% plan to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 120 business owners
use this sample information to test whether the proportion of business owners providing a holiday gift has increased. use the .10 level of significance. round critical value 2 decimals, round test statistic 2 decimal
H0: p = 0.46 ,
Ha: p > 0.46
Test statistics
z = ( - p) / sqrt [ p ( 1 - [) / n]
= ( 0.50 - 0.46 ) / sqrt ( 0.46 ( 1 - 0.46) / 120)
= 0.88
This is test statistics value.
p-value = P(Z > z) = P(Z > 0.88 )
= 0.1894
Since p-value > 0.10 level, do not reject H0.
We conclude at 0.10 level that we fail to support the claim
Last year, 46% of business owners gave a holiday gift to their employees. A survey of...
Last year, 45% of business owners gave a holiday gift to their employees. A survey of business owners indicated that 50% plan to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 120 business owners use this sample information to test whether the proportion of business owners providing a holiday gift has increased. use the .10 level of significance. round critical value 2 decimals, round test statistic 2 decimal
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