QUESTION 10

A researcher is interested in whether there is a difference in the number of cuddles three types of pets (cats, dogs, guinea pigs) receive in a week from their owners. She realises the outcome measure was skewed. Which statistical test is appropriate to analyse these data?

		Goodness-of-fit chi-square test
		Kruskal-Wallis one-way ANOVA
		Independent groups one-way ANOVA
		Wilcoxon's rank sum test

QUESTION 11

A researcher recruits 20 female dogs and 20 male dogs (as well as their owners) at the local dog park. She takes a poll to find out who has passed and who has failed the puppy pre-school final exam. She learns that 14 female dogs have passed, and only 11 male dogs have passed. Which statistical test does she need to conduct to determine if female dogs are actually more likely than male dogs to pass the puppy pre-school final exam?

		Two-way factorial ANOVA
		Chi-square test of independence
		Point-biserial correlation
		Goodness-of-fit chi-square test

QUESTION 12

A researcher was interested whether internal students and external students consume different numbers of alcoholic beverages each week. The researcher found that the data collected were highly skewed. Which statistical test should the researcher use to analyse the data?

		Wilcoxon's rank-sum test
		Independent groups ANOVA
		Kruskal-Wallis one-way ANOVA
		Wilcoxon's signed-ranks test

QUESTION 13

A hospital was interested in purchasing new thermometers for its Emergency Department. There were two different thermometer devices that were identified as being potentially suitable for purchase. The procurement officer asked nine Emergency Department nurses to use both thermometer devices during a shift. At the end of the shift, the officer asked them to rate how useable both devices were on a scale from 1 (not at all useable) to 7 (extremely useable). The data was non-normal. Assuming there were two zero-valued difference scores excluded from the analysis, and with an alpha level of .05, what is the critical value for the test?

		2.306
		2
		4
		3

QUESTION 14

A researcher conducted a Wilcoxon's rank sum test. There were 8 in the first group and 12 in the second group. If the W_obtained = 57, what decision would he make?

		The Wobtained was smaller than the Wcritical, therefore retain H0
		The Wobtained was larger than the Wcritical, therefore retain H0
		The Wobtained was larger than the Wcritical, therefore reject H0
		The Wobtained was smaller than the Wcritical, therefore reject H0

QUESTION 15

A researcher is interested in whether there are differences in individuals' mobile phone brand preference. He chose to include the following categories in his survey: Samsung, iPhone, Huawei, and Nokia. What type of test would he need to conduct and what is the minimum number of people he would need to survey?

		Chi-square test of independence with a minimum of 20 people surveyed
		Goodness-of-fit chi-square with a minimum of 20 people surveyed
		Chi-square test of independence with a minimum of 40 people surveyed
		Goodness-of-fit chi-square with a minimum of 36 people surveyed

QUESTION 16

You recently read an article about coffee that said 40% of people in your age group prefer Cold Brew, 35% prefer Latte, 4% prefer Short Black, and 21% prefer Cappuccino.You wanted to know if 125 of your friends have the same tastes as reported in the magazine, and you collect data to test your hypothesis.When testing your hypothesis, what will be your critical value?

		9.35
		11.14
		9.49
		7.82

no need for explanations just give me the answers