In a normal distribution, of observed data points will lie inside one standard deviation of the mean? Which of these is a correct null hypothesis? 0 None of the above A research trial was conducted whether or not the new medicine reduces cancer. What is the alternative hypothesis? 0 The new medicine cannot reduce cancer 0 The new medicine can reduce cancer 0 The new medicine is not effective. 0 The new medicine is a failure Your statistics instructor returned your final exam with only a z-score written on it. She also told you the histogram of the scores was approximately normal. What 2- score represents the mean? What is the mode of the data set: 15,12,18,12,15,15,12,18,15,16,15, 11, 12 Is the entire group that you want to draw conclusions about. is a measure of the amount of variation or dispersion of a set of values O O Z-score O Variance O Mean Type of statistics that is used to analyze the results and draw conclusions. O Descriptive statistics O Inferential statistics O Statistics O Inferential and descriptive statisticsThe manner in which the total number of observations are distributed over different classes. 0 Frequency Distribution 0 Frequency 0 Normal Distribution 0 Bell curve is a measure of the amount of variation or dispersion of a set of values Determine the median : 756, 726, 710. 568. 564, 440, 440 The null and alternative hypotheses are written about. 0 group data 0 a sample statistic. 0 sample data. 0 a population parameter. This sample refers to a type of sampling method . With this sampling, the researcher divides the population into separate groups, Then, a simple random sample of "groups" is selected from the population. 0 Simple Random 0 Stratified Sampling 0 Clustersample 0 Systematic Sample Which hypothesis should be written as an inequality? 0 Alternative hypothesis 0 Either of the two 0 Null Hypothesis 0 Option 4 Is a collection of responses or observations from a sample or entire population. 0 Data Value 0 Descriptive statistics 0 Data set 0 Statistics Involves random selection, allowing you to make statistical inferences about the whole group. O Non-Probability sampling 0 Probability O Snowball sampling 0 Probability sampling What type of distribution is this? * Median Mean- 1 Mode O Skewed O Skew to the right Positive skew O Skew to the leftA research want to test the whether the general average IQ of TUP-V students is 120 points. What the is the null hypothesis? O The average IQ of TUP-V students is equal 120 points. O The average IQ of TUP-V students is different from 120 points. O The average IQ of TUP-V students is not 120 points. O None of the above If the skewness is between -0.5 and 0.5, the data distribution is? O Symetrical Positively skewed Negatively skewed MesokurticIf the skewness is between -0.5 and 0.5, the data distribution is? O Symetrical O Positively skewed Negatively skewed O Mesokurtic Determine the median: 24, 25, 28, 31, 33, 33, 36, 42, 42, 48, 51, 57, 57, 68, 75, 79, 79, 79, 85 O 42 O 33 O 48 O 51A research trial was conducted whether or not the new medicine reduces cancer. What is the Null hypothesis? 0 The new medicine is a failure 0 The new medicine is not effective. 0 The new medicine cannot reduce cancer 0 The new medicine can reduce cancer Is the process of gathering and measuring information on variables of interest. 0 Data requisition 0 Data measuring 0 Data collection 0 Data set This sample is a population sample that requires the population to be divided into smaller groups. O Cluster sample O Systematic Sample O Stratified Sampling Simple Random Determine mean: 24, 25, 28, 31, 33, 33, 36, 42, 42, 48, 51, 57, 57, 68, 75, 79, 79, 79, 85 O 50 O 51.16 O 50.5 O 51Which of these is NOT a correct alternative hypothesis to correspond with H O: p. = 10? 0 None of the above 0 Ha:u10 This sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. An example of this sample would be the names of 25 employees being chosen out of a hat from a company of 250 employees. 0 Systematic Sample O Simple Random 0 Stratified Sampling 0 Cluster sample