Consider the following hypothesis test: A sample of 140 is used and the population standard deviation is 14. Compute the p-value and state your conclusion for each of the following sample results. Use a = 0.05. Round z value to two decimal places and p-value to four decimal places. If your answer is zero, enter "0". Enter negative value as negative number. a.-60.5 z value p-value conclusion - Select your answer - Ho b. = 58.5 z value p-value conclusion c. = 56 Select your answer - ✓ Ho H₂: #262 Hais < 62 z value p-value conclusion - Select your answer-Ho

Q: Find the standardized test statistic t for a sample with n = 20, x = 13, s = 2.0, and a=0.05 if Ha:…

A: Test - stats(t) = x¯-μsn                                      13-13.4220=-0.894

Q: Consider the following hypothesis test: Ha : µ + 80 08 = r1 : °H A sample of 70 is used. Identify…

A: The given hypothesis is H0:μ=80  Vs  Ha:μ≠80. The sample size is 70.

Q: Calculate the sample standard deviation for this data set: 88, 73, 91.

A: From the provided information, 88, 73, 91 The sample mean of the data can be obtained as:

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: Given data,

Q: 00 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: The middle (center) of the normal curve represents the mean of the curve. The normal curve is the…

Q: Carol-Anne is an environmental scientist studying the heights of red oak trees in a nearby marsh and…

A: It is given that the researcher randomly selected 10 red oak trees from each habitat and records the…

Q: A class of 30 62.171 students took a quiz worth 50 points. The standard deviation of the scores was…

A: Standard deviation of sample is given by

Q: If the grades are normally distributed and 8 students received a B, how many students took the…

A: Let C denote the grades of students. Given that X follows N(mean = 82, SD = 5), then  Z = (X -…

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: 1) Z-SCORE. Which has a better relative position: a score of 75 on a statistics test with a mean of…

A: HI, we are supposed to answer one question at a time. Since you have not mentioned which question to…

Q: compare the given values. The tallest living man at one time had a height of 264 cm. The shortest…

A: Mean=173.67Population standard deviation=8.72

Q: Dr. Smith asked ten of his students how much cash they were carrying. The responses in dollars were:…

A: Number of students = 10 Money that the students will have after getting 1 dollar = Original money +…

Q: Spending on concessions at the movies varies by age of the movie goer. A random sample of 100 adults…

A: It is given that the random sample of 100 adults, 70 purchased popcorn in their 40’s. Another sample…

Q: A golf analyst claims that the standard deviation of the​ 18-hole scores for a golfer is at least…

A: The random variable 18-hole score for a golfer follows normal distribution. The population standard…

Q: 5 students were given a test. The average and standard deviation of the 5 scores were found to be…

A:

Q: A random sample of 14 college women and a random sample of 19 college men were separately asked to…

A: at alpha = 0.05,  the null hypothesis that the mean amount spent by men and the mean amount spent by…

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A:

Q: A pre-med student in a statistics class has to do a statistics project. She plans to test the claim…

A: A pre-med student in a statistics class has to do a statistics project. She plans to test the claim…

Q: Length of Time to Sell a Home. According to the the National Association of Realtors, it took an…

A: Given,sample size(n)=40sample mean(x¯)=3.6sample standard deviation(S)=2population mean(μ)=3α=0.05…

Q: Thirty randomly selected students took the calculus final. If the sample mean was 74.2 and the…

A: From the provided information, Sample size (n) = 30 Sample mean (x̅) = 74.2 Standard deviation (s) =…

Q: random sample of 120 UST ECE Graduates who took the board exam in the past years has an average…

A: Based on sample size and given information , wen eed to decide whether we use Z or t test here.

Q: A population has mean 27 and standard deviation 12 . What is the data value that has a z-score of -2…

A: Given data, Mean=27 sd=12 z=-2 x=?

Q: Assume that adults have IQ scores that are normally distributed with a mean of 105   and a standard…

A: It is given that the mean and standard deviation are 105 and 15, respectively.

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: xP(x)00.00310.02620.11830.21240.27450.22760.10870.02780.005

Q: You recorded the time in seconds it took for 8 participants to solve a puzzle. The times were: 15.2,…

A: Given data set, 15.2, 18.8, 19.3, 19.7, 20.2, 21.8, 22.1, 29.4.

Q: Suppose that you are conducting a survey on how many pets each employee has in his or her household.…

A: Suppose that you are conducting a survey on how many pets each employee has in his or her household.…

Q: d. Determine the sample standard deviation. Round your answer to 2 decimal places. e. Determine the…

A: The data set are :- X :- 29.6 32.4 38.7 42.4 44.5 46.4 49.0 60.8 70.2 Then,  We will find sample…

Q: Assume that the population has a normal distribution. Thirty randomly selected students took the…

A:

Q: Four students take tests.  The results of each test for the class and the student are listed in the…

A: a) John scored an 85 Mean(μ)=77 standard deviation(σ)=4

Q: A golf analyst claims that the standard deviation of the​ 18-hole scores for a golfer is less than…

A: We have to find correct option for each question..

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: Given number of girls(x) P(x) 0 0.004 1 0.028 2 0.114 3 0.218 4 0.275 5 0.213 6…

Q: A population has a mean u=87 and a standard deviation o= 28. Find the mean and standard deviat…

A:

Q: You have a sample of 48 randomly selected Vancouverites. On average (the sample mean), the people in…

A: Given information: Minimum = 367 Maximum = 484 x¯=425, n=48

Q: Use the t-table or any statistical tool and report the t-score that you multiple by the standard…

A: Excel: The confidence level is 95%. Sample size is 5. Degrees of freedom is 5-1= 4. The t-score can…

Q: golf analyst claims that the standard deviation of the​ 18-hole scores for a golfer is less than 1.2…

A: The null hypothesis can be defined as the hypothesis of no difference or equality, while the…