Suppose you found a z-statistic of 1.69.   If the alternative hypothesis is ?>5μ>5 , what would be the P-value?      If the alternative hypothesis is ?<5μ<5 , what would be the P-value?      If the alternative hypothesis is ?≠5μ≠5 , what would be the P-value?

Q: A sample has a mean of 30 and s=8 would a score of x=36 be considered a central score or an extreme…

A: The z-score for x=36 when mean of 30 and standard deviation of 8 is, z=x-Means=36-308=68=0.75 It is…

Q: A sample with M = 85 and s = 12 is transformed into z-scores. After the transformation, what are the…

A: According to the sum, a sample with M = 85 and s = 12 is transformed into z-scores.M = sample mean=…

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…

A: GIVEN data, conducting a study to see if the proportion of voters who prefer candidate A  is…

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A: The provided information are: Population standard deviation σ=4 Margin of error (E) = 0.5 Confidence…

Q: Standardized measures seem to indicate that the average level of anxiety has increased gradually…

A: Consider that μ defines the population mean anxiety score.

Q: Suppose that you had a sample of 55, you would like to compare your sample mean, i = 18 to the…

A: Given information- Population mean, μ = 22 Sample size, n = 55 Sample mean, x-bar = 18 Sample…

Q: Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a…

A: From the provided information, Sample size (n) = 45 Sample mean (x̅) = 64.7 Population mean (µ) =…

Q: LU he leit UI U.)U Cheryl has taken two quizzes in her history class. She scored 15 on the first…

A: 3. Given: For first Quiz, mean is 12 and standard deviation is 2.4. For second Quiz, mean is 11 and…

Q: Suppose X~ N(4,2). What value of x is 1.5 standard deviations to the left of the mean?

A: X~N(μ=4, σ=2)We have to find value of X is 1.5 standard deviation to the left of the mean

Q: Q3.  Researchers developed a "cat IQ test" and find that the population of cats in the United…

A: We have given that  mean score of µ = 25 standard deviation of σ = 3 sample of n = 45

Q: Q4. The standard deviation of the temperature in a large refridgeratored room should not exceed…

A:

Q: Suppose you have a test with a mean of 66 and a standard deviation of 5. If you first increase…

A: Given Mean =66 Standard deviation=5

Q: A taxi company claims that its drivers have an average of at least 12.4 years' experience. In a…

A:

Q: 2. The heights are measured for a simple random sample of 9 supermodels. They have a mean of T =…

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Q: In 2015, the average iceberg weighed 20 million tons. A random sample of 100 icebergs last year had…

A: From the provided information,Standard deviation (s) = 5.7Sample mean (x̄) = 19Sample size (n) =…

Q: A simple random sample of six values had mean x = 13.00 and standard deviation s = 7.155. Calculate…

A: Given,

Q: Q2. There is a claim that the average height of the students in a university is 155cm. A researcher…

A:

Q: A student takes a standardized exam. The grader reports the student's standardized score (z-score)…

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Q: Problem #4: We would like to conduct a hypothesis test at the 4% level of significance to determine…

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Q: If you had a z-score of -1.23 this would tell you that:   Select one: your score was 1.23…

A: The normal distribution is a continuous probability distribution, if we substitute mean=0, and sd=1,…

Q: typical results show a mean self-esteem score of m=39 with ss=60.2 for a sample of n=10 male…

A: Given:

Q: A score that is 3 points lower than the sample mean has a z-score of z = -0.25, and a score of X =…

A: Given information: Case-1: z = -0.25  Score (X) = u-3  Sample mean (u) = u  Case-2: z = -0.75  X =…

Q: A survey in Brighton among cancer patients revealed that 62 out of 454 women patients are diagnosed…

A: Solution: Let X1 be the number of women patients are diagnosed with lung cancer, X2 be the number of…

Q: Question 8 > Calculate the test-statistic, t with the following information. = 0.73 0.91 ni 60, ã1 =…

A: Solution

Q: A random sample of 46 adult coyotes in a region of northern Minnesota showed the average age to be x…

A:

Q: A random variable of 400 samples has a normal distribution with a mean of 54.2 and standard…

A:

Q: Your instructor tells you that past average scores for the final exam are 75%. But this semester he…

A: Find the distribution that has to be used to perform hypothesis testing in the given situation:The…

Q: Prestigious University desires to accept only the top20% of all graduating seniors based on the…

A: Given: μ=500σ=100 The z- value is obtained as below:…

Q: An office manager claims that the mean time required to handle a customer complaint is more than 30…

A: To compare the population mean with the sample mean, either t or z tests would be perform. To use t…

Q: test statistic of -0.318

A: Test statistic are used to determine where the null hypothesis rejected or not. If the test…

Q: Gabriel is studying the difference in time in seconds it takes a rat to get through a maze with and…

A: Given, The confidence interval for the difference between the times: [−7.14,−6.98][-7.14,-6.98]…

Q: Right tail test with Zcalc = 1.07. What is the p-value of the test?

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Q: You are conducting a study to determine if there is a significant difference between typical…

A:

Q: On an exam, Tom scored 12 points above the mean and had a z-score of +2.00. The standard deviation…

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Q: What is the z-score of x = 9, if it is 0.133 standard deviations to the left of the mean?

A: Given X=9,

Q: According to NSCB statistics, the life expectancy of Filipino women is 70.1 years. Suppose a random…

A: The hypothesized mean is 70.1.