People rarely carry change these days. You decide to test if people in their 20's, 30's, and 40's have the same amount (on average) of change in their cars. Test the implied hypothesis using the table below. Group I Group II Group III 33 21 38 |14 22 28 6. 6

Lesson 7Q8 Identify the well-known consistent estimators. A.Sample mean B.Sample variance C.Sample mean and sample variance D.Population mean and population variance

Determine which statistic you would use.  1. A psychologist studied if cognitive intelligence was associated with emotional intelligence in50 people. Cognitive intelligence was measured by averaging each person’s scores on tests ofvocabulary and visual problem solving. Emotional intelligence was measured by theparticipant’s score for accurately describing the moment-by-moment emotional reactionsof three people in a filmed interaction 2. A psychologist is interested in whether exercise increases the intensity of REM sleep in adults in three age groups (younger, middle age, older) She obtains 40 people in each age group and randomly assigns half of them to daily exercise or not in a 2 (exercise vs. not) X 3 (age group) design • REM sleep is measured by rating the vividness of dreams recorded in daily dream diaries collected for one week– Bland dreams = 1; very vivid dreams = 5 3. A psychologist believes physical experiences influence perception, such that a hill will appear steeper if…

R A veterinarian recorded how many kittens were born in each litter. This data is summarized in the L histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) 14 12 10- 8- 6- 4 1 2 3 4 7 8 # of kittens What is the frequency of litters having at most 3 kittens? ans = Fe Ro 1 FEB 18 P. W MacBook Air 20 000 esc F5 F6 F2 F3 F4 F1 & ! @ 1 2 4 5 Q W R %24 # 3 6 2. Frequency

The data for recent year showed the taxes and million dollars received from a random sample 10 states find the first and third quarters in the IQ are 31 5 20 36 33 13 11 26 30 28

Sam took 4 courses last semester: Spanish, Physics, Biology, and Calculus. The means and standard deviations for the final exams, and Sam's scores are given in the table below. Convert Sam's score into z scores.   Subject Mean Stand. dev. Sam's score Sam's z score Spanish 44 12 47   Physics 60 14 84.5   Biology 77 10 82   Calculus 70 12 79   On what exam did Sam have the highest relative score?(Enter the subject.) In the Biology class, there was a student with a z-score of 1.2. What score did that student earn on the exam?

Hi could you answer whats blank?

Please help with this asap