university claims that their employment rate directly after graduation is 70%. In a sample of 300 graduates, 231 found to have gained employment directly after graduation. Test the claim that the university's employment rate after graduation is larger than 70% at the 0.005 significance level. The null and alternative hypothesis would be:   H0:p≤0.7H0:p≤0.7 H1:p>0.7H1:p>0.7 H0:μ≥0.7H0:μ≥0.7 H1:μ<0.7H1:μ<0.7 H0:μ≤0.7H0:μ≤0.7 H1:μ>0.7H1:μ>0.7 H0:p≥0.7H0:p≥0.7 H1:p<0.7H1:p<0.7 H0:p=0.7H0:p=0.7 H1:p≠0.7H1:p≠0.7 H0:μ=0.7H0:μ=0.7 H1:μ≠0.7H1:μ≠0.7 The test is:   right-tailed two-tailed left-tailed The test statistic is:  (to 2 decimals) The p-value is:  (to 4 decimals) Based on this we: Reject the null hypothesis Fail to reject the null hypothesis

Q: Test the claim that the mean GPA of night students is larger than 3.5 at the 0.005 significance…

A: claim : The mean GPA of night students is larger than 3.5, i.e.  μ &gt; 3.5 Hypothesis : H0 : μ ≤3.5…

Q: a. State Upper H 0 .     A. More males are​ left-handed   B. Gender and​ left-handedness are…

A: a. The claim that gender and​ left-handedness are independent. The null hypothesis is, Null…

Q: Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company c…

A: given data, n=100blue candies of blue candies =p claim:p=0.21p^=0.23 α=0.05

Q: The numbers of online applications from simple random samples of college applications for 2003 and…

A: Given : n1 = 368 x1 =129 n2 = 765 x2 =451 p^1 = x1n1 p^1 = 129368 p^1 = 0.3505 p^2 = x2n2 p^2 =…

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A: Test the claim that the mean GPA of night students is significantly different than 2.9 at the 0.05…

Q: Test the claim that the proportion of people who own cats is smaller than 10% at the 0.025…

A: Solution: State the hypotheses Null hypothesis: H0:p≥0.10 That is, the proportion of people who own…

Q: Test the claim that the mean GPA of night students is significantly different than 3.5 at the 0.1…

A: Given that,population mean(u)=3.5sample mean, x =3.51standard deviation, s =0.08number (n)=35

Q: d the critical value for testing Ho: μ = 3.66 versus Ha: μ< 3.66 at significance level 0.01 for nple…

A: We have given that,  H0 : µ = 3.66 versus Ha : &lt; 3.66  Significance level (α) = 0.01 and sample…

Q: Test the claim that the proportion of people who own cats is larger than 90% at the 0.01…

A: Givensignificance level(α)=0.01sample size(n)=800p^=0.92

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A:

Q: ??

A: Step 1: Determine the null and alternative hypothesis for this testThe alternative hypothesis can…

Q: Test the claim that the mean GPA of night students is larger than 2.2 at the 0.01 significance…

A: Given Population mean μ=2.2, level of significance ɑ=0.01  n=75, sample mean x̄=2.22, sample…

Q: In 2011, a U.S. Census report determined that 60% of college students are working students. A…

A: a. To find whether the proportion of pf working students has changed, the null and alternative…

Q: Test the claim that the mean GPA of night students is significantly different than 2 at the 0.05…

A: Solution: State the hypotheses. Null hypothesis: That is, the mean GPA of night students is equal…

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Q: in 2019, investigators from brown university would like to determine the relationship of nail polish…

A: Given:  n = 1000 α = 0.01

Q: Suppose that in a random selection of 100 colored candies, 21% of them are blue. The candy company…

A: Given,   Sample size = 100 Sample proportion = 0.21   The null and alternative hypothesis is:

Q: Suppose that in a random selection of 100 colored candies, 30% of them are blue. The candy company…

A: Given,   Sample size = 100 Sample proportion = 0.30

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: Test the claim that the mean GPA of night students is significantly different than 2 at the 0.2…

A: Given Population mean μ=2, level of significance ɑ=0.20  n=25, Sample mean x̄=1.97, s=sample…

Q: Test the claim that the mean GPA of night students is larger than 2.5 at the 0.10 significance…

A: Correct option: Option 3     Determine the tail of the test.   The tail of the test is right tailed…

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A:

Q: A new assembly-line procedure to increase production has been suggested by Mr. Mump. To test whether…

A:

Q: Test the claim that the mean GPA of night students is larger than 2.7 at the 0.10 significance…

A:

Q: The average student loan debt is reported to be $25200. A student belives that the student loan debt…

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A: Since we desire to test the inferred claim about the mean GPA score of day students with the mean…

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A: Given that P =0.60 ,n =800 ,p^ = 0.58

Q: 14. Test the claim that the mean GPA of night students is significantly different than the mean GPA…

A: 14. Test the claim that the mean GPA of night students is significantly different than the mean GPA…

Q: Test the claim that the mean GPA of night students is smaller than 2.2 at the 0.025 significance…

A: State the hypotheses. That is, there is no evidence to conclude that the mean GPA of night students…

Q: The test is: two-tailed right-tailed left-tailed Based on a sample of 55 people, the sample mean GPA…

A: Given α=0.005 Sample size(n) = 55 Sample meanX = 3.27 Sample Standard Deviation(s) =0.07     The…

Q: Test the claim that the mean GPA of night students is significantly different than 3.2 at the 0.05…

A:

Q: Suppose that in a random selection of 100 colored candies, 22% of them are blue. The candy company…

A: Given: n =100 p=0.22 p = 0.26  α=0.01 To test the claim whether the proportion of blue candies is…

Q: Test the claim that the mean GPA of night students is larger than 2.7 at the 0.005 significance…

A: The claim is that the mean GPA of night students is larger than 2.7.

Q: Test the claim that the mean GPA of night students is larger than 3.3 at the 0.025 significance…

A: Given information Hypothesized mean µ = 3.3 Sample size (n) = 80 Mean x̅ = 3.34 Standard deviation…

Q: A hypothesis test is being planned with the following hypotheses:H0: Vaping during pregnancy does…

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A: Given:

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A:

Q: Test the claim that the mean GPA of night students is smaller than 2.7 at the 0.10 significance…

A: From the given information, The provided information as given below: Sample size (n) = 80…

Q: Test the claim that the mean GPA of night students is significantly different than 3 at the 0.05…

A: Givenclaim is that the mean GPA of night students is significantly different than…

Q: Test the claim that the mean GPA of night students is significantly different than 2.1 at the 0.01…

A:

Q: orking students. A researcher thinks this percentage has changed and surveys 182 college students.…

A: We have given that  The hypothetical proportion p0 = 0.52 , sample size n = 182 and favourable cases…

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A:

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Q: The p-value is:  (to 2 decimals) Based on this we: Fail to reject the null hypothesis Reject the…

A: Given that  Sample size n =25 Sample mean =1.97 Standard deviation =0.06

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A: We have to find null hypothesis and alternative hypothesis, type of test statistics, test…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.