Suppose we want to test the null hypothesis H0 : p = 0.34 against the alternative hypothesis H1 : p < 0.34. Suppose also that we observed 120 successes in a random sample of 300 subjects and the level of significance is 0.01. What is the critical value for this test?  Select one: a. -1.96 b. 2.3263 c. 1.96 d. -2.3263

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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 proportion of people who own cats is smaller than 40% at the 0.005…

A: Given  alpha=0.005, p=0.40 n=200, pcap=0.39

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

A: State the hypotheses. Correct option: Option 2     Determine the tail of the test used.   The tail…

Q: The test statistic of z= - 1.56 is obtained when testing the claim that p < 0.51. A) using a…

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Q: The test statistic of z 1.12 is obtained when testing the claim that p>0.3. a Identify the…

A: (a). Null and alternative hypotheses: The investigator is specifically interested to test the claim…

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Q: 16 What is the z-value for a lower tail test of hypothesis for a population mean when the…

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A: The level of significance is 0.01.The test statistic is z = -0.51.The critical value is -2.33.This…

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Q: est the claim that the mean GPA of night students is smaller than 2.8 at the 0.025 significance…

A: The claim is given that the mean μ GPA of night students is smaller than 2.8. Therefore the…

Q: If the critical z-value for a hypothesis test equals 2.45, what value of the test statistic would…

A: If the critical z value for a hypothesis test equals 2.45, The value of the test statistic that…

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Q: Consider the following hypothesis test: Ho: µ 2 20 Ha: µ< 20 A sample of 60 provided a sample mean…

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Q: part C please..ive asked the question 4 times and all times it was wrong

A: I am giving solution for part C only. Given information- Sample size, n = 519 Sample proportion,…

Q: If, in a sample of n= 25 selected from a normal population, X = 54 and S= 20, what is your…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

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: Test the claim that the mean GPA of night students is smaller than 3.4 at the 0.005 significance…

A: Given Data Hypothesized mean = 3.4 n = 80 Sample mean = 3.38 Standard Deviation = 0.08 Null…

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Q: Consider the following hypothesis test: Ho: u 2 20 H: u< 20 A sample of 60 provided a sample mean of…

A: H0 : ? ≥20 H1 : ? &lt;20 Population mean = ? = 20 Population S.D = ? =2 Sample size = n =60…

Q: Test the claim that the mean GPA of night students is smaller than 2.3 at the 0.05 significance…

A: Given Information: Claim: the mean GPA of night students is smaller than 2.3 Significance level…

Q: The test statistic of z = 1.41 is obtained when testing the claim that p> 0.8. a. Identify the…

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Q: The test statistic of z=−2.07 is obtained when testing the claim that p<0.85. a. Using a…

A: Given  Test statistics=Z=-2.07 P-value&lt;0.85  Level of significance=alpha=0.05

Q: The test statistic z=1.42 is obtained when testing the claim that p>4 a) find the p value B) using…

A: GivenTest statistic(z)=1.42claim is p&gt;4

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Q: 16 Find the significance level of a two tailed test if the critical value of t is 1.746 and the…

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Q: 1. Consider the hypothesis test Ho: oỉ = o3 against H1: of ± 03. Suppose that the sample sizes are…

A: Given n1=9 n1=10

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Q: The test statistic of z = 2.47 is obtained when testing the claim that p > 0.8. Identify the…

A: Solution: The given claim is that p&gt;0.8 and the test statistic is z=2.47.

Q: In a hypothesis test with hypotheses Ho : p= 0.26 and H1 :p+ 0.26, a random sample of size 771…

A: Given Information n = 771 Hypothesized proportion = 0.26 Sample proportion = 0.2450 Hypothesis: H0­…

Q: A random sample of n = 25 individuals is selected from a population with µ = 20, and a treatment is…

A: Consider that μ defines the population mean score.

Q: Test the null hypothesis H0:μ=3.9 against the alternative hypothesis HA:μ≠3.9 based on a random…

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Q: If, in a sample of n 20 selected from a normal population, X = 56 and S = 8, what is your…

A: Given information- Significance level, α = 0.05 Sample size (n) = 20 We have to find the critical…

Q: Perform the test of hypothesis indicated, at 0.10 level of significance, using the data from…

A: There are two methods used to make conclusion about the test statistics. They are p value approach…

Q: Test the claim that the mean GPA of night students is smaller than 2.1 at the 0.025 significance…

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Q: In a hypothesis test with hypotheses Hps0.58 and H p> 0.58 a random sample of size 900 produced a…

A: Solution: State the hypotheses. Null hypothesis: H0: p≤0.58 Alternative hypothesis: H1: p&gt;0.58…

Q: Test the claim that the mean GPA of night students is smaller than 2.2 at the 0.005 significance…

A: Given,sample size(n)=60sample mean(x¯)=2.18standard deviation(s)=0.04α=0.005

Q: If, in a sample of n = 25 selected from a normal population, X= 60 and S= 10, what is your…

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Q: uppose in a hypothesis testing, we obtained a pp-value of 0.003.  Which of the following is/are…

A: he correct is D that is this pp value indicates a big effect size. p value is basically the is the…

Q: If, in a sample of n= 20 selected from a normal population, X= 52 and S=20, what is your statistical…

A: Given, Sample mean, x = 52 Sample size, n = 20 Sample standard deviation, s = 20 Population mean, =…

Q: The test statistic of z = 2.08 is obtained when testing the claim that p> 0.3. a. Identify the…

A: a. The claim indicates the greater than symbol this shows that the hypothesis test is being…

Q: If, in a sample of n=20 selected from a normal population, X = 54 and S = 12, what is your…

A: From the given information, Sample size n =20 Sample mean, x̅=54. Sample standard deviation, S=12…

Q: In a hypothesis test with hypotheses Ho : p 2 0.31 and H1 :p < 0.31, a random sample of size 519…

A: Here, H0: p ≥ 0.31 Vs Ha: p &lt; 0.31, Here, the sample size is, n = 519; sample proportion,…