Does data support the researchers relevant hypothesis

Reference no: EM13157085

It is thought that the front cover and the nature of the first question on mail surveys influence the response rate. This theory was tested by experimenting with different cover designs. One cover was plain; the other used a picture of a skydiver. The researchers speculated that the return rate would be lower for the plain cover.

Cover Number Sent Number Returned
Plain 208 97
Skydiver 212 112

Does this data support the researchers' hypothesis? Test the relevant hypotheses using α = .10 by first calculating a P-value. (Give z to 2 decimal places and the p-value to 4 decimal places.)
z = ???
P-value = ???

Conclusion

a) Reject the null hypothesis, there is significant evidence that the return rate is lower for the plain cover.
b) Reject the null hypothesis, there is not significant evidence that the return rate is lower for the plain cover.
c) Fail to reject the null hypothesis, there is not significant evidence that the return rate is lower for the plain cover.
d) Fail to reject the null hypothesis, there is significant evidence that the return rate is lower for the plain cover.

Reference no: EM13157085

Questions Cloud

What is the new voume : A sample containing 4.80 g of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole gas is added?

What is his tvom in percent : While negotiating the future amount, Wylie notes that he would be willing to take no less than $5,700 if he has to wait a year. What is his TVOM in percent?

Which example is favored in terms of natural selection : Which example is favored in terms of natural selection?

Hedging a portfolio or increasing the returns : Either hedging a portfolio or increasing the returns, managers use one or a combination of five option strategies: spreads, straddles, strangles, covered calls, and condors. Select two of these strategies, explain how it works, and provide a speci..

Does data support the researchers relevant hypothesis : Does this data support the researchers' hypothesis? Test the relevant hypotheses using α = .10 by first calculating a P-value.

How many different protein could be theoretically produced : How many different protein could be theoretically produced via alternative splicing from a eukaryotic gene containing 3 exons and 2 introns in this order Exon-intron-Exon-Intron-Exon?

Important role in american political process : Explain why interest groups play such an important role in the American political process. Explain how interest groups try to influence the president and cngress as these two branches work together to make policy.

How many dollars in interest will they pay : Which bank is giving the best deal? If they go with that bank, how many dollars in interest will they pay?

What is the amount of cash received by the seller : The seller paid transportation costs of $1,000 and issued a credit memorandum for $2,000 prior to payment. What is the amount of cash received by the seller if the invoice is paid within the discount period?

User Account

All Pages