In testing hypotheses, which of the following provides strong evidence against the null hypothesis? Using a small level of significance a Using a large level of significance Obtaining data with a small P-value O d Obtaining data with a large P-value
Q: Test the claim that the mean GPA of night students is significantly different than 3.4 at the 0.01…
A:
Q: Test the claim that the proportion of men who own cats is smaller than 80% at the 0.05 significance…
A: given data clim : p <0.80n = 600p^ = 0.72α = 0.05
Q: A one-sided hypothesis test is to be performed with a significance level of 0.05. Suppose that the…
A: Given: Level of significance (α) =Probability of type I error. It is also called as maximize size of…
Q: Test the claim that the proportion of people who own cats is significantly different than 30% at the…
A:
Q: Test the claim that the proportion of people who own cats is larger than 20% at the 0.025…
A: Given Data : n=500 , p^=0.25 , p0=0.2 and α = 0.025 The null hypothesis is H0 : p ≤0.2 Alternative…
Q: ull and alternative hypothesis would be: M = μF Ho: PM = PF Ho: M = μF UM PF O (to 2 decimals) (to…
A: Given n1=20 n2=20 Pcap1=0.30 Pcap2=0.40
Q: Test the claim that the proportion of men who own cats is significantly different than 40% at the…
A: Given that, Sample size n=55 Sample proportion of people who owned cats p^=0.37
Q: Test the claim that the proportion of men who own cats is significantly different than the…
A: The given data is as follows:Significance level, MenSample size, Sample proportion of men who own…
Q: Consider the random sample of college students. Data on gender and Full or Part- time student course…
A: The following hypothesis can be formed This is a two-tailed test.
Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.10…
A: Given,claim: the proportion of people who own cats is smaller than 70% Sample size(n)=600sample…
Q: est the claim that the proportion of people who own cats is smaller than 20% at the 0.10…
A: given data, claim:the proportion of people who own cats is smaller than 20% at the 0.10…
Q: Test the claim that the proportion of people who own cats is smaller than 60% at the 0.025…
A:
Q: Test the claim that the mean GPA of night students is smaller than 3.2 at the 0.10 significance…
A: From the provided information, Sample size (n) = 40 Sample mean (x̅) = 3.18 Sample standard…
Q: White Results from a civil servant exam are shown in the table to the right. Is there sufficient…
A: The question is about categorical data analysis Given :
Q: Test the claim that the mean GPA of night students is significantly different than 3.1 at the 0.02…
A: Solution
Q: Test the claim that the mean GPA of night students is significantly different than 2.4 at the 0.02…
A: Here we want to test the claim that mean GPA of night students is significantly different than 2.4…
Q: please help Test the claim that the proportion of men who own cats is significantly different than…
A: givenn1=80p^1=0.35n2=80p^2=0.55α=0.05pooled…
Q: The null and alternative hypothesis would be: Ho:p = 0.8 Ho: 4 3.2 Ho:p 0.8 H1:p 3.2 The test is:…
A: Given data : sample size, n = 65 sample mean, x̄ = 3.24 sample standard…
Q: Test the claim that the proportion of people who own cats is significantly different than 20% at the…
A: The given data is as follows:Significance level, Sample size, Sample proportion,
Q: Test the claim that the proportion of men who own cats is smaller than 60% at the .05 significance…
A: The question is about hypothesis testing.Given :No. of people in the sample ( n ) = 55Sample…
Q: he 5% significance level. (Hint: think about or draw out what it means to reject the null hypothesis…
A: Solution: The decision rule of rejecting the null hypothesis using p value method is. Reject the…
Q: Test the claim that the proportion of people who own cats is larger than 50% at the 0.05…
A: Solution: From the given information, p-hat=0.56 and n=600.
Q: A television executive claims that the percent of households that watch the Macy's parade on…
A:
Q: In testing hypotheses, if the consequences of failing to reject a null hypothesis that is actually…
A: Here, if the consequences of failing to reject a null hypothesis that is actually false are very…
Q: Test the claim that the proportion of people who own cats is smaller than 20% at the 0.10…
A: Test the claim that the proportion of people who own cats is smaller than 20% at the 0.10…
Q: Test the claim that the proportion of men who own cats is significantly different than 20% at the…
A: The given data is as follows:Significance level, Sample size, Sample proportion,
Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…
A: Consider that pM, pF is the true proportions of men (1st population) and women (2nd population) who…
Q: Test the claim that the mean GPA of night students is significantly different than 3.5 at the 0.02…
A: Solution We solve by using excel
Q: Test the claim that the proportion of people who own cats is larger than 50% at the 0.05…
A:
Q: Test the claim that the proportion of people who own cats is smaller than 60% at the 0.005…
A: Introduction: Denote p as the true proportion of people who owned cats.
Q: Test the claim that the proportion of men who own cats is significantly different than 60% at th…
A: Answer The population proportion [p] = 0.6The sample size [n] =45The sample proportion [hat p] =…
Q: Test the claim that the proportion of men who own dogs is significantly different than the…
A: The null and alternative hypothesis be two-tailed test statistic = 2.2p-value = 0.0285
Q: Test the claim that the mean GPA of night students is significantly different than 2.7 at the 0.2…
A: claim : we wants to test that mean GPA of night student is different than 2.7 given information:…
Q: In a random sample of males, it was found that 25 write with their left hands and 217 do not. In a…
A: There are two independent samples which are males and females. We have to test whether the rate of…
Q: Test the claim that the mean GPA of night students is larger than the mean GPA of day students at…
A: The answer is attached below,
Q: Test the claim that the mean GPA of night students is significantly different than 2.5 at the 0.05…
A: Given that
Q: Significance testing is similar to hypothesis testing, except rather than comparing a p-value to a…
A: Given Information: Null Hypothesis H0:μ≤60 Alternative Hypothesis H1:μ>60 The standard deviation…
Q: In a study of 819 randomly selected medical malpractice lawsuits, it was found that 473 of them were…
A: State the hypotheses. That is, there is no evidence that the proportion of most medical malpractice…
Q: Test the claim that the mean GPA of night students is significantly different than 2.1 at the 0.01…
A:
Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…
A: Given : The hypothesis of the proportion of men owns a cat is less than the proportion of women who…
Q: Test the claim that the proportion of men who own cats is significantly different than 40% at the…
A: Given that Claim : The proportion of men who owns cats is significantly different than 40%…
Q: Test the claim that the proportion of people who own cats is significantly different than 30% at the…
A: Z= p^-pp(1-p)n
Q: Test the claim that the mean GPA of night students is larger than 3.1 at the 0.10 significance…
A: Given data : sample size, n = 75 sample mean, x̄ = 3.14 sample standard…
Q: For a hypothesis test, if the p-value for the test statistic is less than the significance level,…
A: p-value : p-value =P(Test statistic |null hypothesis ) p-value is the probability of obtaining test…
Q: Test the claim that the mean GPA of night students is significantly different than 2.9 at the 0.01…
A: Given that, The type of test is two tailed test
Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…
A: n1=60, n2=40
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- Consider the following hypotheses: Ho: u 2 128 НА: и < 128 A sample of 75 observations results in a sample mean of 122. The population standard deviation is known to be 31. (You may find it useful to reference the appropriate table: z table or t table) a-1. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic a-2. Find the p-value. p-value < 0.01 O 0.01 s p-value < 0.025 0.025 s p-value < 0.05 0.05 s p-value < 0.10 p-value 2 0.1OTest the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .005 significance level. The null and alternative hypothesis would be: Ho: PM = PF Ho: MM = F Ho: PM = PF H₁ PM PF H₁: μM μF H₁ PM > PF O O The test is: left-tailed two-tailed O O Based on a sample of 80 men, 25% owned cats Based on a sample of 20 women, 35% owned cats The test statistic is: The p-value is: right-tailed O Based on this we: O Reject the null hypothesis O Fail to reject the null hypothesis Ho: PM = MF H₁: MM > MF (to 2 decimals) (to 2 decimals) Ho: MM = F Ho:PM = PF H₁: MM < MF H₁:PM < PF O OTest the claim that the proportion of people who own cats is smaller than 60% at the 0.025 significance level. The null and alternative hypothesis would be: Ho: p=0.6 Ho:μ ≥ 0.6 Ho: p 0.6 The test is: left-tailed right-tailed two-tailed Based on a sample of 600 people, 53% owned cats The test statistic is: The p-value is: Based on this we: Ho:p>0.6 Ho: 0.6 Ho: μ 0.6 Reject the null hypothesis O Fail to reject the null hypothesis (to 2 decimals) (to 2 decimals) =
- Passed Failed White candidates Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence to support the claim that the results from the test are discriminatory? Use a 0.01 significance level. Minority candidates Determine the null and alternative hypotheses. O A. Ho: White and minority candidates have the same chance of passing the test. H: White and minority candidates do not have the same chance of passing the test. O B. Ho: A white candidate is more likely to pass the test than a minority candidate. H: A white candidate is not more likely to pass the test than a minority candidate. O C. Ho: A white candidate is not more likely to pass the test than a minority candidate. H: A white candidate is more likely to pass the test than a minority candidate O D. Ho: White and minority candidates do not have the same chance of passing the test. H: White and minority candidates have the same chance of passing the test. Determine the test statistic. =…Test the claim that the proportion of people who own a pet is smaller than 50% at the 0.05 significance level. The null and alternative hypothesis would be: Но: р 3 0.5 Но:д > 0.5 Но:д 0.5 Ні:р 0.5 Hi:р + 0.5 The test is: left-tailed two-tailed right-tailed Based on a sample of 600 people, 288 owned a pet, the p-value is: |(to 4 decimals) Based on this we: Fail to reject the null hypothesis Reject the null hypothesisA researcher wants to know if there is a statistically significant difference between Liberal Arts majors and other students on average number of books (other than those required by course work) read per year. To test this research question, sample students attending a large university have been randomly selected. Using the sample information suggested below, conduct a hypothesis test at 0.05 significance level. Sample 1 (Liberal Arts majors) Sample 2 (Other majors) = 16.2 = 13.7 s1 = 2.3 s2 = 9.0 N1 = 236 N2 = 321 - What is the critical Z-score? - Compute the test statistic value (i.e., calculated or obtained Z-score). -Determine if the null hypothesis is rejected AND state what it means.
- Gender and College Students: According to the U.S. Department of Education, approximately 57% of students attending colleges in the U.S. are female. A statistics student is curious whether this is true at her college. She tests the hypotheses H0: p = 0.57 versus Ha: p ≠ 0.57. She plans to use a significance level of 0.05. She calculates her test statistic to be 1.42. Using the applet, which is the P‑value? Click here to open the applet. https://oli.cmu.edu/jcourse/webui/resolver/link/resource.do?src=cb847b400a0001dc04119794d105ae35&dst=mod7_one_slider_z_calc_two_areas_cdf# P‑value = 0.078 P‑value = 0.156 P‑value = 0.922 P‑value = 0.05Test the claim that the proportion of men who own cats is smaller than 40% at the .005 significance level. The null and alternative hypothesis would be:Bruce a store owner would like to determine if a new advertising initiative has increased the proportion of sales he makes to woman is more than 75% to test as he gathers information on 150 random sales and finds out 120 of those sales were to woman the following is a set up for this hypothesis test:  Ho: p=0.75 Ha: p>0.75 P-value is 0.079 At the 1% significance level, chose the correct solution A. There is sufficient evidence to conclude that of a portion of sales he makes woman woman is more than 75% B. There is not sufficient evidence to conclude that the portion of sales he makes the woman is more than 75% C. There are sufficient evidence to conclude that the before sheet of sales he makes a woman is more than 50% D. There is not sufficient evidence to conclude that the portion of sales he makes woman is more than 50% 
- Which of the following terms describes when the null hypothesis is NOT rejected when it should be rejected? O Significance level, a Type I error Type II error p-Value Alternative hypothesisA one-sided hypothesis test is to be performed with a significance level of 0.05. Suppose that the null hypothesis is false. If a significance level of 0.01 were to be used instead of a significance level of 0.05, which of the following would be true? A B O E Neither the probability of a Type Il error nor the power of the test would change. Both the probability of a Type II error and the power of the test would decrease. Both the probability of a Type Il error and the power of the test would increase. The probability of a Type II error would decrease and the power of the test would increase. The probability of a Type Il error would increase and the power of the test would decrease.Test the claim that the mean GPA of night students is significantly different than 2.6 at the 0.05 significance level. The null and alternative hypothesis would be: Но: д — 2.6 Нo:р 3 0.65 Но: р %—D 0.65 Но:н H:р > 2.6 Н:p#0.65 Hi:p > 0.65 Н:д < 2.6 H:д 2 2.6 H:р<0.65 - 2.6 Ho:µ 2.6 Но:р 0.65 = = The test is: right-tailed left-tailed two-tailed Based on a sample of 65 people, the sample mean GPA was 2.63 with a standard deviation of 0.05 The test statistic i: (to 2 decimals) The positive critical value is: (to 2 decimals) Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis