Response rates to web surveys are typically low, partially due to users starting but not finishing...

Response rates to web surveys are typically low, partially due to users starting but not finishing the survey. The factors that influence response rates were investigated. A survey company designed a study to verify this information. Web users were directed to participate in one of several surveys with different formats. One format utilized a welcome screen with a white background and the other one with a blue background. Data of the survey are given in table. Use three digits whenever necessary.

	white screen	blue screen
completed	141	146
breakoff	49	37

1)The survey company assumes when a welcome screen with a blue background is used the rate of break off will be less than 0.25. Test the claim with a =0.07.

a. State the hypothesis

b. What is the decision rule?

c. Test statistic

d.Decision and managerial decision

e.Calculate the p-value

f.Interpret hypothesis using p-value

Expert Solution

1) total number of web users 37+146=183

Please follow the following steps to conduct the hypothesis.

a)

b) Reject the null hypothesis if Z statistic is < -1.48

c) Z = -1.494

d) Reject the null hypothesis,

e) P-value = 0.0676

f) Since P-value is less than the significance level 0.07, we will reject the null hypothesis.

orchestra answered 2 years ago

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