Testing: Ho: p=0.25 H₁: p > 0.25 Your sample consists of 149 subjects, with 33 successes. Calculate the test statistic, rounded to 2 decimal places

Q: How smart is your phone? A random sample of 10 samsung Galaxy smartphones being sold over the…

A: The random variable X follows normal distribution. We have to construct the 99.8% confidence…

Q: esting: H0:p=0.32  H1:p>0.32  Your sample consists of 147 subjects, with 55 successe

A: The sample proportion can be calculated as: Calculate the z test statistic as follows: Substitute…

Q: Treatment Placebo H2 A study was done using a treatment group and a placebo group. The results are…

A: To find: Find the test statistic (t) and p-value.

Q: The first answer is B. What is the test statistic

A:

Q: Nationally, 80 percent of adults own an thermometer. You are interested in whether the same…

A: We have given that  Sample size n = 100 Sample proportion p^=75%=0.75 Population proportion…

Q: How smart is your phone? A random sample of 10 Samsung Galaxy smartphones being sold over the…

A: We have given that,  The data set is,  199, 169, 385, 329, 269, 149, 135, 249, 299, 249 standard…

Q: Testing:��:�=26.9��:�<26.9Your sample consists of 30 subjects, with a �¯ = 26.3 and � =…

A: The objective of this question is to calculate the test statistic for a given sample. The test…

Q: using the "gpa" variable, you determine that the average GPA in the sample is _____. enter your…

A: The table shows the descriptive statistics for the variables age, jobwant, tv, gpa and work status.

Q: When the Standard Score = -1, what is the percentile of the raw score? %3D O 2nd 14th O 16th 34th…

A: It is an important part of statistics. It is widely used.

Q: H0:p=0.63 H1:p≠0.63 Your sample consists of 85 subjects, with 56 successes. Calculate the test…

A: We have given that the hypotheses  H0:p=0.63H1:p≠0.63 Sample size n=85 , favourable cases X=56…

Q: A college student is interested in investigating the claim that students who graduate with a…

A: From the provided information,

Q: H0; p= 0.71 H1; p < .71 your sample consists of 135 subjects with 93 successes. calculate the…

A: From the provided information, Population proportion (p0) = 0.71 Sample size (n) = 135 Number of…

Q: ​Claim: Fewer than 95​% of adults have a cell phone. In a reputable poll of 1073 ​adults, 90​%…

A: Formula for Test statistic  Test statistic ( z ) z = ( p^ - p ) / ( √( p * ( 1 - p) / n) )

Q: what percent of the total population is found between the mean and the z-score given? z=3.58

A: We have given that. Standard normal.  X~N( 0 , 1 )   μ =0  , ? =1   Z-score =( x - μ )/?   z= 3.58

Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: Consider this data set of (n 117) birth weights in grams that has been sorted. %3D 1545 1607 1870…

A: 16 percentile: Pi=in+1100th term

Q: Testing whether Story Spoilers Spoil Stories A story spoiler gives away the ending early. Does…

A: The t test are used to determine the mean significance between the two samples from the population.…

Q: 29 randomly selected students were asked the number of movies they watched the previous week. The…

A: Frequency distribution is a table that display the observations and the frequencies of each of the…

Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: Identify the​ t-statistic and P-value.

A: The sample size n is 23.

Q: You have a sample of 10 (sorted) scores: -15.5 -13.4 -12.7 -12.2 -12 -10 -9.1 -8.9 -7.9 -7.1…

A: From the provided information,Number of observations (n) = 10

Q: Testing: Ho: p = 0.62 H₁:p 0.62 Your sample consists of 119 subjects, with 71 successes. Calculate…

A: From the provided information, Sample size (n) = 119 From which 71 got successes. The hypotheses are…

Q: Here is a set of sample data. 53 90 93 99 55 64 65 73 75 76 84 87 88 Use your calculator to identify…

A: The given data set is:53,55,64,65,73,75,76,84,87,88,90,93,99The five-number summary, which is given…

Q: Regan is interested in comparing the outdoor activity of people from different parts of the country.…

A: Analysis of variance (ANOVA) is a statistical technique that is used to check if the means of two or…

Q: Testing: Ho:p= 0.22 Ha:p > 0.22 %3D Your sample consists of 122 subjects, with 32 successes.…

A: Given data number of success , x= 32 sample size, n =122 population proportion,p=…

Q: A student assistant administers an exam for the incoming grade 11 ABM students. Fifteen incoming…

A: We have to find test statistics.

Q: A survey of 1195 CEOS finds that 717 believe the economy will improve next year. We are trying to…

A: We have given that,  Population proportion (p)= 66% = 0.66 and favorable cases (X) = 717 , sample…

Q: n a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA…

A: Central limit theorem: For a simple random sample of size n drawn from a population, the sampling…

Q: Table 2 Vitamin D levels Optimal >25ng/mL Mild deficiency 10ng/mL-24ng/mL Severe deficiency >10ng/mL…

A: Vitamin D level  Hospitalised with COVID        Yes  No   Optimal >25 mg/ml 33 44   Mild…

Q: Testing: Ho:p = 0.9 H1:p # 0.9 Your sample consists of 113 subjects, with 100 successes. Calculate…

A: Given information: x=100n=113p^=xn=100113=0.8850 Null hypothesis: H0: P=0.90 Alternative hypothesis:…

Q: The NAEP music assessment scores for eighth grade students are approximately N (150, 35). Find the…

A: Given data: Let , X ~ N (150, 35) To find: 1.Find the z-scores by standardizing the following…

Q: H0 , test statistic, and p value    please

A: Here we conduct F test for variance

Q: A software company is interested in improving customer satisfaction rate from the 53% currently…

A: Statistical tests are used to calculate the test statistic and p-value. This test statistic and…

Q: Sample proportion is 18%. Population proportion is 13%. Sample Size is 400. Calculated value of test…

A:

Q: A₁ Ay As B₁ 64 B B2 B3 220

A: Since the given question is about independence of two groups. Chi square test of independence will…

Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

A: In the given scenario, the credit scores of people were compared. The company wants to examine the…

Q: Based on the results of a test of significance, a researcher decides to reject the null hypothesis…

A: The researcher decides to reject the null hypothesis when in fact the null hypothesis is true.

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: n1=70 , p1=30% , n2=170, P2=60%

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: Given information, n1=90 and p1=0.80 n2=110 and p2=0.70 Consider, the pooled proportion,…