The table shows the number satisfied in their work in a sample of working adults with a college education and in a sample of working adults without a college education. Assume that you plan to use a significance level of alpha=0.05 to test the claim that p1>p2. Find the critical value(s) for this hypothesis test. Do the data provide sufficient evidence that a greater proportion of those with a college education are satisfied in their work? College Education No college education Number in sample 194 188 number satisfied in their work 74 70 The answer that I got was z=1.645;no. A)z=1.645;no B)z=-1.645;yes C)z=1,96;yes D)z=+-1.96;no
Yeah I think so. I think that was the closest answer to what I got. A)z=0.000 B)z=-0.036 C)z=-0.153 D)z=-0.090( the one that I got) Is my answer wrong?
Assume that you plan to use a significance level of alpha=0.05 to test the claim that p1=p2. Use the given sample sizes and numbers of successes to find the z test statistic for the hypothesis test. A report on the nightly news broadcast stated that 13 out of 103 households with pet dogs were burglarized and 23 out of 177 without pet dogs were burglarized.
Express the null hypothesis and the alternative null hypothesis in symbolic form. Use the correct symbol(mean, p, standard deviation) for the indicated parameter. An entomologist writes an article in a scientific journal which claims that fewer that 3 in ten thousand male fireflies are unable to produce light due to a genetic mutation. Use the parameter p, the true proportion of fireflies unable to produce light.
The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n=575 drowning deaths of children with 30% of them attributable to beaches.